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Santa Barbara Museum of Natural History: Please Present Both Sides of the Planet Debate [Nov. 5th, 2009|12:46 am]

Dear Members of the Executive Committee, Astronomy Programs Manager and Assistant, and Staff Members,

I am an astronomy graduate student, amateur astronomer and writer, and I am writing to you to express my dismay over your booking Mike Brown to speak in a November 14 lecture titled "How I Killed Pluto, and Why I Had It Coming." Specifically, my concern is that Brown represents only one side of a very much ongoing debate over the status of Pluto and definition of planet, yet he misrepresents his point of view as the only legimitate one in the astronomy community.

In his blog "Mike Brown's Planets," Brown has repeatedly denied that a debate even exists, claiming over and over again that everyone has accepted the "new" eight-planet solar system when this is completely untrue. Several hundred professional astronomers signed a formal petition rejecting the IAU decision; their petition can be found here: http://www.ipetitions.com/petition/planetprotest .

Many of these astronomers including New Horizons Principal  Investigator Dr. Alan Stern, Dr. Mark Sykes, Dr. David Morrison, Dr. David Grinspoon, and Dr. Hal Weaver decided to boycott this year's IAU General Assembly because in spite of their multiple requests, the IAU leadership adamantly refused to reopen discussion on the continuing controversy over planet definition.

Because Brown represents only one side of this debate yet misleadingly repeats over and over that there is no debate, it is a tremendous disservice to the public for the Santa Barbara Museum of Natural History to host him without booking another astronomer representing the other side of this debate, namely support for the geophysical definition of planet (which defines a planet as any non-self-luminous spheroidal body orbiting a star). Members of the public deserve to know that the 2006 IAU decision is not a done deal, and that Pluto has never been "killed" as a planet. If you do not sponsor a speaker representing this view, many will be misled into believing Brown is portraying the facts as opposed to one interpretation of the facts.

The fact that this debate remains ongoing can be seen from the popularity of Alan Boyle's new book The Case for Pluto and Pluto Confidential, a book by two astronomers, Laurence A. Marshall and Stephen P. Maran, who represent both sides of this controversy.

The persistence of the debate is also very evident in the audio transcripts of the Great Planet Debate, held at the Johns Hopkins University Applied Physics Lab in Laurel, MD in August 2008, specifically in response to the problematic 2006 IAU General Assembly. Many of the astronomers mentioned above were key speakers at that event, whose proceedings can be found at http://gpd.jhuapl.edu . I urge you all to take the time to listen to this very engaging discussion, which was conducted on a professional level and addressed all points of view regarding the question of "What Is A Planet."

I would be happy to provide you with contact information for any of these astronomers, who I am sure would be happy to give a talk for you. I ask you to also consider having me present the other side. I have run "Laurel's Pluto Blog" for three years advocating the overturning of the demotion of Pluto, went back to graduate school to study astronomy so I can have a voice in this debate, have published many articles on this subject, and have been quoted by many professional astronomers in their blogs on this issue. My blog can be found at http://laurele.livejournal.com . It has been accepted as part of the International Year of Astronomy's Portal to the Universe program and is rated tenth in Facebook's Top 50 Astronomy Blogs. Articles I wrote on this subject can be found here: http://www.space.co.uk/Features/Articles/Plutotheplanetthatwas/tabid/634/Default.aspx and here: http://www.asterism.org/newsletter/2008-10.pdf
At the following sites, journalists and astronomers have noted my persistent efforts to have Pluto's planet status (and the planet status of all dwarf planets) reinstated:

http://tierneylab.blogs.nytimes.com/2009/01/10/how-many-planets-do-you-want-in-the-solar-s ystem/

http://philosophyofscienceportal.blogspot.com

http://astroprofspage.com/archives/1898

http://physics.about.com/b/2009/01/31/the-other-side-of-pluto.htm

Please take my concerns under the most serious consideration and do the right thing by providing your loyal supporters and the general public with a speaker who presents the point of view that Pluto is not only alive, but is very much a planet, as are Ceres, Haumea, Makemake, and Eris.

Thank you for taking the time to hear my concerns.

Sincerely,

Laurel E. Kornfeld

Highland Park, NJ,

Graduate Student, Swinburne University Astronomy Online Program

Note to Blog Readers: Contact information for the executive committee and staff of the Santa Barbara Museum of Natural History can be found here: http://sbnature.org/about/72.html . The more people they hear from asking for fairness in presenting both sides, the better!

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Between Asteroids and Planets: A New Category [Oct. 11th, 2009|06:44 pm]

Our current classification schemes for celestial objects are becoming more and more inadequate as new discoveries are being made. An article published in the October 9, 2009 issue of Science presents compelling evidence that Pallas, located in the asteroid belt between Mars and Jupiter and considered an asteroid since its mid-19th-century demotion from planethood, is not an asteroid at all, but an object of an intermediate category between asteroid and planet, described by some as a "protoplanet," a "planetary embryo," and/or a "baby planet."

Protoplanets are usually thought of as the precursors to full planets during the early formation of solar systems. They are objects in the process of accreting in a protoplanetary disk around a protostar (a star that has not yet ignited through hydrogen fusion). Our early solar system was much more active and violent than today's, as objects in the protoplanetary disk regularly impacted one another and some began the runaway growth that would eventually transform them into full blown planets.

The asteroid belt between Mars and Jupiter is composed of objects that never accreted into a single large planet, mostly because Jupiter, with its strong gravitational field, gobbled up most of the material in that region for itself.

Researchers including Britney Schmidt, who did a very thorough presentation on Vesta and Pallas at the Great Planet Debate, used the Hubble Space Telescope to study Pallas in depth and found that unlike most asteroids, this body is not simply a loosely-held together rubble pile. Measuring 165 miles in diameter, Pallas has surface features and color variations that indicate it experienced thermal evolution and had the potential of growing into a full blown planet.  Pallas may even have some degree of geological differentiation. The researchers theorize Pallas formed from water-rich material and began to experience the same geological differentiation seen on planets, with heavy elements sinking to the core and lighter ones rising toward the surface.

In fact, Pallas, like Vesta, may once have been spherical. An impact crater examined by the researchers indicates Pallas was impacted by a large object some time in its past.

In the words of the "Discovery Space" web site, which can be found at http://dsc.discovery.com/space/big-pic/hubble-pallas-asteroid-protoplanet.html , "The Hubble Space telescope has taken a look at the large asteroid 2 Pallas and realized that this isn't just another large rock with a crater in it. Pallas is a protoplanet."

Opponents of using the criterion of hydrostatic equilibrium as an identifying feature for objects to be designated as planets often raise the question of "borderline" objects about which it is difficult or impossible to tell whether hydrostatic equilibrium has been attained. What is interesting here is that Pallas is almost but not quite spherical, just short of being in hydrostatic equilibrium. That makes it, like Vesta, one of those "borderline" objects skeptics often raise in their arguments.

While Pallas had the geology that put it on the path of becoming a planet, including liquid water and geological processes, the process was stopped and frozen in place early in the lifetime of the solar system due to Jupiter's gravitational influence. Yet Pallas, which researchers say "is closer to a planet than to a typical asteroid," remained largely intact in spite of early impacts, making it--and Vesta--unique solar system objects, essentially "fossils" representing a state all planets went through on their journey to becoming planets.

In his October 8, 2009 column, Alan Boyle states: "The bottom line is that Pallas is, well, right on the line when it comes to the important features dividing the solar system's big planets and dwarfs (and, for that matter, roundish natural satellites such as our moon) from irregular objects such as small asteroids and comets." See http://cosmiclog.msnbc.msn.com/archive/2009/10/08/2092402.aspx

What this means, is that any classification system for this and other solar systems, if purporting to be accurate, essentially requires a new, intermediate category between asteroid and dwarf planet (I'm using dwarf planet as a subclass of planet for objects that orbit stars and are in hydrostatic equilibrium but do not gravitationally dominate their orbits--Stern's "unter planets"). Assigning Vesta and Pallas to the asteroid category does not do them justice because it tells us nothing about their advancement beyond the state of most asteroids, erroneously placing them in the same grouping as large rubble piles that never came close to being shaped by their own gravity. We can call this intermediate category "protoplanets," "planetary embryos," "baby planets," or something else, but for the sake of accuracy and thoroughness, astronomers must designate a new and separate category for them.

We may discover some borderline Kuiper Belt Objects that also fall into this protoplanet category. This would provide an answer to the skeptics who ask about those objects on the "borderline."  Incidentally, Pluto, Eris, Haumea, and Makemake do not fit into this category, as their being in hydrostatic equilibrium is not in doubt.

Should protoplanets be considered a subclass of planets? Maybe the answer is to establish a spectrum that reflects what is really out there instead of neatly putting things into categories, resulting in unlike bodies thrown together in classifications such as the IAU's "small solar system bodies." We have such a spectrum for stars, the Herszprung-Russell Diagram, and it has been modified with the addition of extra categories to account for brown dwarfs, a class of objects on the bottom of the stellar category, massive enough to fuse deuterium (an isotope of hydrogen) for a short time but not massive enough to ignite as full-fledged stars. Protostars, "baby stars" in the process of formation, stars that have not yet "turned on" and begun hydrogen fusion, still have a place on the Herszprung-Russell Diagram. Why not set up a similar diagram for planets with "protoplanets" at the bottom, just above asteroids. This seems far better and more comprehensive than throwing a very diverse group of objects together under a broad wastebasket category called "small solar system bodies."

Creating such a system should not be the big deal it has turned out to be. And it does not have to be done by the IAU. Instead, how about planetary scientists getting together and working on a useful classification system? It's about time.
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What Not to Teach or Display in A Classroom [Oct. 4th, 2009|04:57 pm]

Here is the poster child for what not to display in classrooms and what should not be taught to children: http://davidwboswell.wordpress.com/2009/09/20/pluto-correctness/ . Blogger David Boswell displays this image under an entry titled “Pluto Correctness,” illustrating an actual poster in his daughter’s preschool classroom.

 

If a picture is worth a thousand words, this is clearly the picture for the worst possible education children can be given about the solar system. Pluto crossed out—what is the message here? Circling and crossing out exercises are often used with preschoolers. The general idea is circle the right answer and cross out the wrong one. For example, a worksheet will show several objects and ask children to cross out the one that doesn’t belong. A typical assignment might show a truck, a motorcycle, a car, and a television. Crossing out the television, the correct choice, indicates that the television does not belong since the other three objects are vehicles, and the television is not.

 

In her fantasy novel A Wind in the Door, Madeleine L’Engle invokes the image of “Xing” or crossing things out as a way of negating their very existence. The antagonists in the story seek to “X” whoever they view as a threat to their frightening plans for the universe’s future. Those who are “Xed” are as though they never were.

 

That is why, as a L’Engle fan, I have never been comfortable with the labeling of my generation as “Generation X.” It sounds too much like a baby boomers’ decision that the generation succeeding them doesn’t exist, has no identity of its own.

 

So what are the lessons of a solar system display with Pluto crossed out? Some of the likely resulting beliefs by preschoolers who see this are that Pluto no longer exists, that it has been destroyed, that it was imaginary and never existed, that it is really an asteroid, that it was hit and destroyed by an asteroid or by aliens, etc. Every one of these reactions has been reported by parents, teachers, and siblings from young children’s discussions of Pluto.

 

Boswell erroneously states, “It’s been long enough that younger kids have grown up only knowing that Pluto used to be a planet. It’s a paradigm shift in action with the new generation simply accepting the new status as normal while any disagreements among older generations start to fade away.”

 

Wow, is he wrong, and on many levels. His views are very much in conjunction with the IAU’s repeated attempt to suppress any continuing debate on planet definition. The problem is, if one has to suppress debate to force an opinion on others, that usually means that opinion is not fully accepted and deep down, those suppressing opposition know that.

 

Thanks to conscientious teachers, parents, writers, and amateur astronomers, kids are not growing up with simple blind acceptance of a position that is still part of an ongoing debate. Instead, they are growing up learning that some issues can be looked at from multiple viewpoints, that some questions still do not have a single answer, even among the world’s top scientists. The disagreements among the so-called “older generation” are not “fading away.” They are as active as ever, and to say otherwise is a tremendous disservice to children.

 

In fact, the real paradigm shift is not going from nine to eight planets; it’s going from nine to numerous planets, and that is just in our solar system. This is the paradigm shift so many have trouble accepting, as can be seen from remarks like, “If we count Pluto, then we have to count hundreds of objects in our solar system as planets.” Well, yes, we very well may have to count hundreds of objects in the solar system as planets. Why is that a problem? Who originated the idea that kids cannot understand that our solar system contains four terrestrial planets, two gas giants, two ice giants, and numerous dwarf planets, all of which fall under the umbrella of planets? Whoever did is seriously underestimating the learning capacity of children.

 

Interestingly, a CNN poll conducted on August 24, 2009, the third anniversary of the IAU’s disastrous decision, resulted in 83 percent of respondents supporting Pluto’s formal reinstatement as a planet. Such a profound public endorsement shows that Dr. Stern is correct in his assessment that people know a planet when they see one. They see a spherical object orbiting the sun, and in spite of convoluted logic about what it means for an object to clear its orbit, they recognize that object as a planet. Don’t expect any “fading away” of Pluto’s planet status, or that of dwarf planets, any time soon.

 

At the same time, a science quiz by the Pew Research Center takes the wrong approach with a badly-worded question, “According to most astronomers, which of the following is no longer considered a planet,” then listing Neptune, Pluto, Saturn, and Mercury. According to most astronomers? Has Pew taken a poll? How do they come by this information when 96 percent of IAU members never took part in the vote, hundreds of professional astronomers opposed the decision, and many astronomers do not even belong to the IAU. Pew should do the right thing, and re-word this question with only one change. It should read, “According to some astronomers, which of the following is no longer considered a planet?” What they have now is a disservice and not a valid scientific knowledge survey.

 

Since one focus of this blog is to keep track of opposition to the IAU definition, it is appropriate here to congratulate McDonalds for distributing Happy Meal boxes reading “There are nine planets in total” in our solar system (http://deadlinescotland.wordpress.com/2009/10/04/10185-1916/ ). Some have gone so far as to accuse Ronald McDonald of “conning” kids into believing Pluto is still a planet. The real con, however, is by the IAU, which is attempting to force its one controversial view on the world as fact.

 

The IAU cannot even agree on what its role in astronomy is. Several IAU members have commented that their planet definition was never meant to be imposed on the entire world, that it is for internal use by IAU members only. Yet at the same time, the same people scream bloody hell when their definition isn’t followed. Scientist Paul Murdin calls McDonald’s inclusion of Pluto on these boxes as “a shame,” while the editor in Chief of the Encyclopedia of Astronomy and Astrophysics has stated, “McDonald’s have got this wrong. It’s a shame they didn’t check their facts.”

 

No, it’s the IAU that has it wrong. In fact, McDonald’s spokespeople have noted they are quite aware of the Pluto debate and rather than having gotten the facts “wrong,” they simply have chosen to join the many who reject the IAU’s controversial demotion of Pluto.

 

I would encourage McDonald’s to go further and add Ceres, Haumea, Makemake, and Eris to the Happy Meal boxes.

 

And while fast food is admittedly not the best choice healthwise, I encourage those who plan to purchase it anyway to vote with their dollars and support McDonald’s Happy Meal nine-planet boxes.

 

There are other ways to vote with one’s dollars as well. Jewelry designer Adriana Soto sells Planet Pluto Earrings and Planet Pluto Bracelets at this site: http://urbanheirlooms.blogspot.com/2009/09/planet-pluto-earring-284.html http://urbanheirlooms.blogspot.com/2009/09/290-planet-pluto-bracelet.html

 

Now, once more about that old, tired claim that it is only Americans who oppose the demotion of Pluto: the fact is, a very large number of the world’s planetary scientists are American, and planetary scientists make up the bulk of those who oppose the IAU planet definition. It is not surprising that the US is home to the largest number of planetary scientists, considering that the US led the space race and planetary missions for several decades. The issue is not whether Pluto is an “American” planet but the fact that those who study planets are heavily concentrated in the US, which has led the world in planetary research that has transformed the objects in our solar system from little more than names and tiny dots in a telescope’s field of view to real, up close, active worlds. Likewise, it makes the most sense that those who study planets would want a definition based on the traits of the objects they study rather than one based solely on where those objects are.

 

Finally, in terms of suppressing debate, that offense is being done solely by the pro-IAU camp. Opponents of the IAU definition have no problem admitting there is an ongoing debate, unlike supporters, who insist the debate is over. It seems the latter group is quite perturbed that what they thought was resolved their way has not been resolved at all!

 

Maybe that’s why Mike Brown has now formally banned me from his blog. That’s right. His reasoning is that I made “uncivil” comments there, but the reality is that went both ways. I did not insult Brown until he referred to me on Twitter as a “nutter,” prompting a British astronomer to write an entire blog entry called “Engaging the Loonies.” To that astronomer’s credit, he removed the offending entry when confronted about just how below the belt it was.

 

As for the statement that got me banned from Brown’s blog, it was a private email in which I vowed to undo his “killing” of Pluto and noted that even if he banned me, there are many other Pluto supporters active online, and he can’t ban them all.

 

Over at Alan Boyle’s “Cosmic Log” blog, one commenter, using the name “Harold Nations,” was right on about the suppression of debate by Brown and other supporters of Pluto’s demotion. With no prompting or input from me whatsoever, he wrote the following:

 

“A thing I find interesting in this debate is that Mike Brown clearly, originally, wanted Eris to be called the tenth planet and for obvious reasons.  He even posted the most telling thing I've ever read in the debate, that the word "planet" is clearly a cultural, not a scientific definition, much like the word "continent".  THEN, for reasons known only to himself, he decided to become oh so politically correct on the entire issue.  Had he stuck to his guns, there would NOT be a debate today, perhaps.  He's been debated time after time by Laurel Kornfeld on  his blog over planet nomenclature, and he's lost so many times he's now banned her from his blog.”

Source: http://cosmiclog.msnbc.msn.com/archive/2009/08/05/2020560.aspx

 

To get back to kids, these kids at the Music Tapes who made “For the Planet Pluto 3” make a definitive statement in their video by ultimately rejecting Pluto’s demotion and welcoming it back to planet status. “Out of the mouths of babes…” Visit http://opticalatlas.com/2009/08/video-the-music-tapes-for-the-planet-pluto-3/ to see this humorous, heartwarming video and song, as this debate continues.

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Planet Pluto Lives [Aug. 24th, 2009|01:17 am]

This is a day I long hoped would not come, a sad anniversary for astronomy, and one that could have been avoided if even one IAU member had had the courage to stand up at this month’s General Assembly in Rio de Janeiro and ask fellow members to admit the mistake made three years ago in the infamous vote on planet definition and take action to set it right.

 

But out of 2,100 attendees, not a single person exhibited that courage. At a General Assembly that started with a lower attendance than the notorious one three years ago in Prague (that one began with 2,500 attendees out of nearly 10,000 IAU members and ended with 424), the major denial of this ongoing issue amounted to the huge elephant in the room that everyone pretended not to see.

 

And so it is August 24, 2009, the third anniversary of the bizarre drama that resulted in a planet definition so poorly cobbled together that even dynamicists, who favor planet status for only the largest eight bodies in the solar system, admit is so flawed as to be practically useless.

 

Instead of recognizing its mistake and making an effort to set things right, the IAU has continued its disappointing refusal to re-open this issue, ultimately digging itself into a larger and larger hole.

 

The only one bright hint of progress was expressed in the August 13 issue of the General Assembly’s daily newspaper “Estrela D’Alva,” where the new IAU president Robert Williams notes that the Executive Committee is “debating the possibility of allowing Union-wide electronic voting on some issues.”

 

That’s right, they’re debating whether to allow electronic voting, something that should have been discussed and enacted at the General Assembly where, once again, only those in the room on the last day of the conference were permitted to vote.

 

For those who want to view the General Assembly proceedings, they can be found online at http://www.video.rnp.br/overmedia/videos.jsp?_contexto=grupo&_idContexto=57

 

And in spite of my disappointment with the non-action in Rio, I do thank the IAU and the editorial board of its General Assembly newspaper “Estrela D’Alva” for publishing a very non-partisan, information-only article I wrote about Pluto in its final issue on August 14, 2009. That can be found here: http://www.astronomy2009.com.br/10.pdf . It’s quite a feat for a group like the IAU to publish an article by someone known as a vocal opponent of their position, a feat that my political opponents here in Highland Park, NJ have yet to accomplish in more than ten years.

 

The good news is that the IAU is not the only venue to look to for renewed discussion and decisions on planet definition. Anyone can claim to be an authority, as the IAU does regarding astronomical matters. But action—or in this case, inaction—speaks louder than words. By refusing to fix its mistake and clean up its mess, the IAU can be considered to have effectively abdicated its responsibility on this matter.

 

The Rio conference does mark a turning point, a transition from astronomy having one central authority to becoming a decentralized field of study with multiple sources of expertise, interpretation, and even authority. Some have half-jokingly compared this evolution of events to the Protestant Reformation, arguing that a planetary scientist asking the IAU to reconsider its stand on planet definition is akin to Martin Luther petitioning the Catholic Church’s College of Cardinals to vote on his 95 theses (no offense intended to Catholicism here).

 

It is an appropriate analogy. Where before there was one central, hierarchical organization, now, there are multiple groups, and the erstwhile “one true church” is now just one of many.

 

Continuing to petition and write to the IAU is still a worthy endeavor, as such action compels the organization to face a strong, consistent public voice rejecting the 2006 decision. But this alone will not suffice toward the goal of bringing about a better, more inclusive planet definition.

 

What we need to emphasize now are the continuing statements, writings, and discussions on planet definition where scientists opposed to the IAU decision speak out and offer an alternative. The issue is certain to remain a central topic of discussion at scientific conferences. Books on the subject continue to be published and generate interest, with the latest being Alan Boyle’s The Case for Pluto coming in October. Also in October, NOVA plans to film a discussion of planet definition at Harvard University, with Brian Marsden and Neil deGrasse Tyson speaking on behalf of demotion and Mark Sykes and Owen Gingerich presenting the opposing view. No airdate has yet been set, but I will announce it here as soon as the information becomes available.

 

The long and short of it is, advocacy for Pluto and all dwarf planets being recognized as planets will now have to occur in a more diffuse environment and over a longer period of time. Those of us who want to see a change will need to look to multiple sources, to the many scientists who actively dissent from the IAU view. We will need to cite these scientists and work with them in generating educational materials for classrooms, textbooks, and schools ranging from preschool to graduate school. We will have to generate websites and publications backed by recognized astronomers that credibly maintain a more inclusive schematic for defining planets. And most importantly, we will have to teach both children and adults that no one authority has “the answer,” that they will have to sift through multiple sources with competing views and arrive at their own conclusions.

 

Real data, of course, always takes precedence over rhetoric. That real data will become available over the next few years, as Dawn flies by Vesta in 2011 and then explores Ceres in 2015, the latter just at the same time New Horizons will be sending home images of Pluto and Charon. All of these missions will clearly show worlds that are not only in hydrostatic equilibrium, but geologically differentiated and far more like Earth and Mars than like shapeless asteroids. Interestingly, the IAU will hold a General Assembly in Honolulu one month after the New Horizons Pluto-Charon flyby; one can only imagine the impact this data will have on discussions at that time.

 

Personally, I don’t want to wait six more years for vindication. But it might just take that long. Sometimes, it’s better to let time and usage, which evolves over time, especially in the presence of new data, win the day in establishing a new perspective, rather than rushing a process, as the IAU did in 2006. In the meantime, it’s perfectly fine to note in as many venues as possible that there is more than one legitimate perspective on this issue.

 

I always like to note the cultural and artistic side of this issue, the continuing songs, poems, etc. inspired by Pluto’s plight and the planet debate. Just this month, I found an online video made by children titled “For the Planet Pluto,” at http://www.mergerecords.com/blog/2009/08/the-music-tapes-present-for-the-planet-pluto/ . The fourth graders of Athens, Georgia, who created this video, show more sense and understanding than do many professional astronomers.

 

A full three years after the decision that was supposed to end the controversy once and for all, the debate is more alive and well than ever, even if it isn’t happening at the IAU. And in a phenomenon that practically defies understanding, Pluto remains one of if not the most popular, most loved, most inspiring of the planets in the hearts and minds of millions. A tiny planet that continues to be talked about, sung about, written about by people of all ages all over the world is most certainly not “dead.” Maybe that is what bothers people like Mike Brown so much. Pluto has resisted all efforts to “kill” it. The more Brown and like-minded astronomers insist the debate is over, the more it sounds like the people they are most trying to convince are themselves.

 

Once again, in the words of the song by Tim Ophus and Chuck Crouse, who respectively wrote the music and lyrics to “Dwarf Planet Nothing (The Pluto Song),” at http://www.youtube.com/watch?v=jlkYe6i3Dns ,

 

“Pluto’s Going to Rise Once Again!”

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An Open Letter to the 27th IAU General Assembly [Aug. 6th, 2009|02:49 pm]

August 6, 2009

 

Dear Dr. Cesarsky, Members of the IAU Executive Committee, Members of the 

         Secretariat, Members of the Working Group on Planetary System Nomenclature,

         and Delegates to the 27th IAU General Assembly,

 

I am writing to urge this General Assembly to officially reopen the planet definition issue, in light of the tumultuous, controversial, and abrupt manner in which it was addressed at the 26th General Assembly in 2006. Specifically, I ask that you reconsider and add Resolution 5b from 2006, which would establish “planets” as a broad, umbrella category under which both classical and dwarf planets would be included.

 

Doing this amounts to reconsidering a simple amendment that, if adopted, would supersede the 2006 vote on this resolution and thereby establish dwarf planets as a subcategory of planets.

 

Additionally, I urge you to place a resolution on the table to allow electronic voting on all resolutions by all members of the IAU, for the purpose of including the voices of astronomers who for various reasons, including financial difficulties and family responsibilities, are unable to attend the two-week General Assemblies in person. This will make IAU processes more inclusive of its membership and bring them in line with the digital reality of the 21st century.

 

Undoubtedly, you are all aware that a significant number of planetary scientists and professional astronomers, as well as amateur astronomers and interested members of the public, have been dissatisfied with the IAU planet definition adopted in 2006. That is why I and many others are asking that a better planet definition be adopted, specifically one that includes exoplanets in its classification system and also reassigns dwarf planets as a subcategory of planets, as had been proposed by 2006 resolution 5b.

 

This is not about Pluto; it is about the need for a more useful, clear definition that encompasses both dynamics and planetary geophysics. The 2006 definition fails to do that on two counts. First it states that dwarf planets are not planets at all, which is inconsistent with the use of the term “dwarf” in astronomy, where dwarf stars are still stars, and dwarf galaxies are still galaxies. This results in blurring the crucial distinction between those objects located in belts but in hydrostatic equilibrium, with shapeless asteroids. Second, it defines objects solely by where they are while ignoring what they are. If Earth were in Pluto’s orbit, according to this definition, it would not be considered a planet either. A definition that takes the same object and makes it a planet in one location and not a planet in another is essentially unusable.

 

Additionally, the process through which the 2006 definition was adopted was flawed, as it violated the IAU’s own bylaws requiring such a resolution to be first vetted by the appropriate committee before being put on the General Assembly floor, a practice not done in this case.

 

With planetary science still in its infancy, it is understandable that first attempts at defining terms such as planets will be difficult and may need reconsideration. In that light, the 2006 resolutions represented a good, valiant first attempt in this direction. There is no shame, however, in admitting that this first step is flawed to the point of requiring amending. Specifically, the requirement that an object “clear the neighborhood of its orbit” to be considered a planet is vague; if taken literally, it most certainly excludes Neptune, which does not clear its orbit of Pluto and could also be construed to exclude Earth, Mars, and Jupiter, which share their orbits with large numbers of asteroids.

 

Significantly, only 424 out of 10,000 IAU members took part in the 2006 vote, and of those, only 237 approved the 2006 planet definition resolution. In no way can this be considered a majority consensus. It is noteworthy that immediately, hundreds of professional astronomers around the world, led by Dr. Alan Stern, Principal Investigator of NASA’s New Horizons mission to Pluto, signed a formal petition rejecting the IAU decision entirely, adding that they will not use it.

 

A conference titled “The Great Planet Debate,” held in August 2008 at the Johns Hopkins University Applied Physics Lab, focused solely on planet definition, with open discussion of the fine details representing both the views of dynamicists and planetary geologists on this issue. Even among dynamicists, there was consensus that the 2006 decision needs to be amended. This same view was unanimously upheld at the Isaac Asimov Memorial Debate, “From Planets to Plutoids,” held in March 2009 at the American Museum of Natural History in New York City, where six panelists (three dynamicists and three planetary scientists) and moderator Dr. Neil deGrasse Tyson all agreed that a better planet definition is needed.

 

In her opening statements to the 27th General Assembly, Dr. Cesarsky noted that while 142 nations are participating in the International Year of Astronomy, only 63 countries are national members of the IAU. I ask that you consider the possibility that this notable difference results from a dichotomy in public perception: much of the general public is fascinated with astronomy, but many have lost respect for the IAU, not because of Pluto, but because the IAU’s decision-making processes appear to be driven more by politics than by science.

 

In the GA newsletter “Estrela D’Alva,” on August 4, 2009, discussion of a decadal plan to stimulate astronomy education around the world opens with the statement, “the IAU regards stimulating astronomy education and development throughout the world to be one of its most important tasks.” This is in line with the IAU goal of “safeguarding the science of astronomy” and communicating astronomy with the public.

 

Communicating with the public means listening to members of the public. It is a two-way street. Members of the public around the world, not just in the US, feel disenfranchised and ignored by the IAU planet definition resolution, both in its process and outcome. As an amateur astronomer, writer, and astronomy student, I have personally experienced, both in person and online, this dissatisfaction and disconnect that ultimately turns people away from science, thereby defeating the goals above. Among those most dedicated to astronomy, large numbers worldwide are dissatisfied with the 2006 decision, and many refuse to use it. How will the IAU successfully raise funds needed for its planned Global Development Office and general decadal plan if its processes are alienating so many potential donors?

 

That is why, to further respectful two-way communication with the public, I urge the IAU to also actively seek input on important issues such as this one from a broader population, including professional astronomers who are not IAU members, amateur astronomers and groups representing them, and astronomy students at all levels.

 

If the IAU continues to deny that a controversy remains over planet definition and the 2006 resolution in spite of clear data to the contrary, the organization risks becoming less and less relevant and less and less influential on astronomical matters. In the US, a guiding principle is that government operates by consent of the governed, and that the people can withdraw that consent at any time should an existing government begin conducting itself in an unsatisfactory and tyrannical manner. The IAU claims to be the governing body on all celestial objects and phenomena. In this light, the IAU should very strongly consider that public and scientific consent to its dictates are not absolute and may be withdrawn at any time if enough people view the organization as irrelevant or as failing to do its job in “safeguarding the science of astronomy.”

 

Should the IAU fail to appropriately deal with this issue and the broader question of its closed decision-making process, it is inevitable that other groups and individuals will emerge to fill that void, further eroding the IAU’s credibility and respect in the field of astronomy.

 

Therefore, regardless of the fact that no action on this issue has been planned for this General Assembly, I implore the IAU’s leadership, delegates to the GA, and members to do what needs to be done, to show courage and sensitivity to both scientists and lay people in admitting the planet definition issue remains unresolved and place a resolution on the General Assembly floor for a vote on August 13, 2009, which will officially adopt resolution 5b of 2006 and establish dwarf planets as a subclass of planets. I further ask a resolution allowing for electronic voting be adopted before any other resolutions are considered to allow the IAU’s full membership to vote on all relevant issues.

 

Sincerely,

Laurel E. Kornfeld

Highland Park, NJ, USA

Writer, amateur astronomer, astronomy student and blogger

http://laurele.livejournal.com

 

 

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July 2009: A Great Month for Astronomy [Aug. 1st, 2009|11:21 pm]

The month that ended yesterday was simply terrific for astronomy and anyone with an interest in the subject. Specifically, the third week of July featured three major astronomical events--the 40th anniversary of the Apollo 11 moon landing, the discovery that a comet had impacted Jupiter, and the longest total solar eclipse of the century.

I was four at the time of the first moon landing but have no memory of it whatsoever. In fact, my first memory of an Apollo launch is likely Apollo 17, judging from my memory of where my family lived at the time and still live. Luckily, the History Channel actually showed the initial 1969 broadcast by CBS with Walter Cronkite, so I got to see it this time. With all the commemorations and the good fortune of all three Apollo 11 astronauts still living, the media and the Internet were filled with personal recollections of the special moment, what it meant then, and what it means now.

That translated into discussion of the question, should we go back to the moon or should we aim straight for Mars. It tied into the disappointment of so many who 40 years ago, believed space travel would be common in 2009. It turns out that the lack of money for NASA now stems from the same reason as the lack of funding to continue the Apollo program--too much money is being spent on war, then in Vietnam, now in Iraq and Afghanistan. The conflict is not between funding the space program and funding human needs but about the funding the space program versus funding questionable wars abroad, both for the US and for other nations.

Unlike Shoemaker-Levy 9, the comet that hit Jupiter was never seen in advance this time. Significantly, the discovery of its impact spot was made by an amateur astronomer in Australia, illustrating again the important role amateurs play in observation, discovery, and as ambassadors of astronomy to the public.

Unable to afford the expense of being an eclipse chaser, I had to settle for watching it online, where many broadcasts suddenly disconnected due to servers and web sites being overloaded. Viewing a montage of images from different locations was quite an experience, but it would have been nice to have watched one area continually as the eclipse progressed. I've been warned that solar eclipses are highly addictive, that the minute totality ends, those who traversed half the world to see it immediately plan the next trip. I'm hoping to make it to the one that will cross North America in 2017 in spite of the risk of addiction.

Again, for a brief time, international news focused on astronomy, and people around the world experienced the thrill, wonder, and beauty so many too often ignore. If only every week could be like that one in terms of media coverage!

Now, with August here, comes what I once referred to as "the moment of truth." The IAU will again hold its General Assembly, this year in Rio de Janeiro, Brazil.  Although I was given approval to attend and cover this event as a journalist, something I never thought would happen, neither the newspaper for which I write nor I can financially afford the trip. It was genuinely heartbreaking to have to send an email to the IAU saying I would not be coming after all.

Much more significantly, many of the high profile advocates of Pluto's planet status are staying away, convinced that there are other, better arenas than the IAU to promote the view that dwarf planets are planets too. I understand the choice, but I still wish they had decided differently, that they went to the General Assembly and demanded the reopening of this issue. It is still possible one or more of the delegates will do this, and even if he/she/they do get the issue on the floor, it is unclear whether electronic voting would be allowed so that all members could vote even if they couldn't attend. The IAU does not pay fees or expenses for its members, and quite a few astronomers are in the same boat as I am, being financially unable to afford traveling to Rio.

One who is attending is Mike Brown, and it's just an instinct, but I have a bad feeling that his purpose in attending is specifically to squelch any effort to resurrect the planet debate. He has already stated publicly that he would vote against any reinstatement of Pluto or dwarf planets as planets.

Yet so many Plutophiles, children and adults alike, still cling to the hope that in 2009, the IAU will face up to the mistake made in 2006 and this time, do it right when it comes to planet definition. Doing this will not make the IAU look foolish or stupid or harm its reputation in any way. It is far better to admit to a mistake and do everything possible to set it right than to keep the mistake going. Only two weeks into his term, President Barack Obama showed the courage to admit that he messed up in his choice of nomination for one of the Cabinet positions. If President Obama can admit to a mistake, why can't the IAU?

I plan to send several pages of signatures from a hard copy petition I and others have been circulating for three years, which quotes the 300+ professional astronomers who signed Alan Stern's petition rejecting the IAU demotion, stating simply, "I believe Pluto is a planet, and a better definition is needed," to the conference in Rio. Never have I had such an easy time getting any petitions signed. So many are/were eager to put their names on paper in support of Pluto's planet status.

A "better definition" is needed, not just because of Pluto, but also for other spherical bodies like Ceres, Vesta, Haumea, Makemake, Eris, and Sedna.

One article on the upcoming General Assembly quoted a professor named Nick Lomb, of the Sidney Observatory in Australia, saying that we cannot have too many planets because memorizing their names is a crucial part of astronomy education, and children will be unable to memorize the names of up to 100 planets. He actually claims having too many planets will do harm to science! What a poor argument for a PhD to make! No one would suggest limiting the number of Jupiter's moons because 63 names are harder to memorize than four! No one suggests artificially restricting the number of stars and galaxies to a "memorizable" amount or cutting down the Periodic Table of the Elements to eight. As I and others have said many times, memorization is not that important. For stars, we learn the Hertzsprung-Russell diagram, which delineates categories of stars by size, color, and stage in their lives. Why can't we do the same with planets, establishing multiple subcategories and learning the important features that define each individual category?

Even more ridiculous is Lomb's citing of the importance of everyone learning the name of the "classical planets." If he really means this, he should not expect anyone to learn the names of any objects beyond Saturn, as Uranus and Neptune were discovered relatively recently (1781 and 1846 respectively), and even the Galilean moons of Jupiter were only found around 1610.

2009 is not the only chance for Pluto to regain its planet status. Dr. Mark Sykes believes it will be the new discoveries, in this solar system and in others, that will compel astronomers to re-examine just what makes an object a planet. Then of course, there is New Horizons, which will give us a tremendous influx of data on Pluto at the same time Dawn gives us similar data on Ceres. Both encounters will take place in 2015. An up close view of these bodies will clearly show them to be geologically differentiated, tell us about their composition, and illustrate their difference from shapeless asteroids.

It may not be now or never, but I'm still holding out hope for 2009 even though there are venues other than the IAU and many opportunities for more knowledgable debate about this in the near future. To that end, I urge all who want to see dwarf planets made a subclass of planets, now more than ever, to email the IAU and its officials, especially the Executive Committee and the Working Group on Planetary System Nomenclature.

The IAU web site can be found at http://www.iau.org . The chair of the Division III Working Group on Planetary System Nomenclature is Rita M. Schulz, who can be reached at Rita.Schulz@esa.int . For Americans, the US representative to this Working Group is Edward Bowell of the Lowell Observatory, who can be reached at ebowell@lowell.edu . The web page of this working group is http://www.iau.org/science/scientific_bodies/working_groups/98/members/ . You can click on any member's name to get his/her web page and email address. The president of the IAU Executive Committee, Catherine Cesarsky, can be reached at catherine.cesarsky@cea.fr  while the president-elect, who will take office at the General Assembly, is Robert Williams, who can be reached at wms@stsci.edu . The Secretary General, Karel van der Hucht, can be reached at K.A.van.der.Hucht@sron.nl , and the Deputy Secretary General, Ian Corbett, can be reached at icorbett@eso.org .

The web site of the 2009 General Assembly can be found and the Assembly's program book can be found here: http://www.astronomy2009.com.br/

I believe the people of the world have spoken, and a majority want Pluto and the dwarf planets to be considered planets too. That is why I implore all who feel the same way to email the people above and as many IAU members as possible, and, using logical, informative, and civil arguments, implore them to reopen the issue of planet definition.

On a lighter note, I am reposting a limerick I wrote in November 2007 in response to one written for me by Stuart Lowe of Jodrell Bank, the author of Astronomy Blog at http://www.strudel.org.uk/blog/astro/000734.shtml

There was a group called IAU
Who were mad no one knew what they do
Members said, we need press
Make a solar system mess
That should get us an article or two

On and on for two weeks they debated
'Til the brilliant plan was created
Pluto isn't a planet
From the other eight, ban it
And TV coverage will show that we've "made it!"

On the last day the scientists voted
And Pluto was formally demoted
But most people's reaction
Was not to the IAU's satisfaction
"It's sloppy," other scientists were quoted

It turned out most did not like the change
Found that "clearing its orbit" thing strange
So musicians and writers
Became Pluto's fighters
A backlash they began to arrange

The IAU learned its lesson in time
Don't mess with a system that's fine
And at last came admission
"We made a bad decision,
Reverse it in 2009!"

As Captain Picard would say, "Make it so!!!"
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Pluto Speaks Out: Scorned Planet Defiant about Status [Jul. 11th, 2009|12:59 pm]

As a writer and actress, I blatantly reject the so-called “celebrity culture,” which was especially over the top by the media during this past week. As a rebel and stickler for fairness, I believe that talent is talent, and should be valued on its own merit, not because it is attached to a “name.” A so-called “name actor” can be just as talented as one the industry refuses to recognize, and worship of people almost as gods is just plain unhealthy. In that context, I was inspired to write about the similar phenomenon taking place in our solar system.

 

Pluto Speaks Out: Scorned Planet Defiant about Status

 

Recently demoted by Earth’s International Astronomical Union, Pluto has endured three tough years, not just among Earth’s humans but in the solar system as a whole, facing ridicule and discrimination from other solar system bodies for defiantly clinging to its planet status. In an exclusive interview for this web site, Pluto speaks out about planetary discrimination, and solar system hierarchies, revealing the inner workings of a system riddled with patronage, favoritism, and jockeying for position.

 

Interviewer: Pluto, I’m going to start out being blunt. After all, facts are facts. The solar system has seven moons larger than you. Another Kuiper Belt Object, Eris, is bigger than you are, and at least two others are pretty much your size. How then can you justify putting yourself in the same category as the eight Big Guys?

 

Pluto: The problem here is that you’re arbitrarily choosing size as somehow being of more value than a whole host of other criteria. Size isn’t everything. I say, look at shape. I’ve achieved hydrostatic equilibrium. I’m shaped by my own gravity. That’s what puts me in the same category as your so-called “Big Guys.”

 

Interviewer: Honestly, Pluto, how many moons of other solar system planets are also in hydrostatic equilibrium? They don’t insist on being called planets. They accept that they’re not in the inner circle. They understand that they’re just not in the big leagues.

 

Pluto: We’ve got a couple of misconceptions here. First of all, I never denied them the status of planet. In fact, in my view, if they’re in hydrostatic equilibrium, they’re planets too. For some reason, maybe their own low self-esteem, they feel the need to center their lives around other planets instead of maintaining their own orbits.

 

Interviewer: So you have no problem with calling these moons planets.

 

Pluto: Of course not. I just feel bad that they don’t think enough of themselves to recognize that they can orbit the Sun directly. They don’t have to attach themselves to the so-called giants to be important. Unfortunately, they’re buying into the propaganda that they’re somehow inferior and will get nowhere unless they faun all over the giants.

 

Interviewer: And Eris and those other round Kuiper Belt Objects? They’re planets too?

 

Pluto: Of course. And they’ll tell you that themselves. It’s only these so-called Big Guys who are spreading the lie that if you’re not one of their “Big Eight,” you’re not a planet, and that the best you can do is hang onto their coattails. Here in the Kuiper Belt, we laugh at their self-importance.

 

Interviewer: But realistically, you can’t say you have the same degree of influence as the giants. Jupiter regularly intercepts comets, stopping them from impacting other planets, including Earth. What do you do that is comparable?

 

Pluto: First of all, you’re assuming Earth is somehow more deserving of protection than any of the rest of us. Not to mention, what’s wrong with comets? They hang out with me here in the ‘hood all the time. If they want to take a trip into the inner solar system and see what it’s like near the Sun, why should they be prohibited from doing that? We don’t tell Mercury, Venus, Earth, or Mars not to get near the Sun. This is just the same old size discrimination again. That or special favoritism to Earth because it’s directly related to humans.

 

And you know what? Most comets who take that trip, once they get close to the Sun, they realize it’s hot as hell over there, and they come racing back into the outer solar system very happy to get home. Some of them come back broken and damaged from all that heat, and once they’re back, they choose to live here in the ‘hood, what those Big Guys ridicule as the boondocks.

 

Interviewer: So comets should be allowed to roam freely all over the solar system.

 

Pluto: Of course. Why should there be one set of rules for the Big Guys and another set of rules for the little guys? That’s a blatant double standard.

 

Interviewer: Yet every day comets leave your ‘hood trying to get closer to the Sun. Thousands of asteroids compete just get closest to Jupiter or Saturn. For every one that makes it, thousands don’t. You don’t have asteroids clamoring to orbit you. The overwhelming majority want to be part of the Big Guys’ kingdoms, even if it means just being a speck in their ring systems.

 

Pluto: You see; that’s where their value systems are all screwed up. Why make your whole life revolve around another planet when you can be one yourself, when you can have your own orbit? Okay, I’m small, but I orbit the Sun directly. They only live vicariously through attaching themselves to the giant planets. Why would I want to orbit another planet when I can have an orbit of my own? Yes, it’s kind of different, but you know, I like it, and I have complete freedom to do what I want.

 

And you know, having moons isn’t all it’s cracked up to be. And I say this as someone who has three moons myself. The whole planet-moon thing is part of the hierarchical mentality that is the root of most problems here in the solar system. Why can’t we all be planets? In fact, Charon and I are unique in that we co-orbit one another. Ours is an orbit of equals. I love Charon, and I don’t feel the need to make myself superior.

 

Interviewer: You do have Nix and Hydra orbiting you though.

 

Pluto: Because they choose to. They happen to like our different way of doing things. And Charon and I are fine with that. If they ever want to go off on their own and be their own planets, we’ll wish them well. We won’t try to keep them in our shadows.

 

And, you’ve actually made another good point. Charon and I have a system of four. Mercury and Venus have no moons at all. Mars has two little asteroid moons who were rejected by Jupiter. Why should they be planets and Charon and I be some sort of second-class citizens?

 

Interviewer: You don’t clear your orbit of other Kuiper Belt Objects, and those planets do have clear orbits.

 

Pluto: Only because they were born in an advantaged location. Put them out here in the Kuiper Belt, and they wouldn’t clear anything.

 

Interviewer: Many astronomers consider you most like Triton, a moon of Neptune. Why should you be given the coveted title of planet, yet the larger Triton just be a moon?

 

Pluto: Again with this size issue. We keep coming back to that. Look, I know Triton, and once upon a time, he was a planet just like me, with his own orbit—until Neptune lured him in with all this rhetoric about how popular he’d be if he were associated with a giant planet. Unfortunately, Triton bought into this propaganda, against my advice by the way. And you know what? It’s all going to end in tragedy. His orbit around Neptune is unstable. One day, he’s going to crash into his big blue idol and completely self-destruct. Of course, Neptune never told him that in advance. All because Triton chose to give up his individuality and worship one of the so-called Big Guys. I, on the other hand, will still be here when he’s long gone.

 

Interviewer: So you really believe you’re as important to the solar system as giants like Jupiter and Saturn?

 

Pluto: Yes I do. And I’ll tell you something else they don’t want you to know. Those two, especially Jupiter, really wanted to be suns, but they just couldn’t do it. Hell, Jupiter tried and tried but couldn’t even fuse deuterium, much less hydrogen. These guys are wanna bes. That’s why they’ve got their own little solar systems going. And Uranus and Neptune just copied them. They’ve collected all those moons because they want to act like suns, but deep down, they know they’re not. And so they’re compensating. It’s the same thing with the rings. Saturn started the whole thing as one big show of ostentation. Then the other three gas giants copied him. Oh, they love to brag about how objects all over the solar system would kill just to be a tiny moonlet in their rings. So egotistic, so self-important. And they don’t even have surfaces. You can’t stand on them or land a rover on them, but you can do both of those with me.

 

Interviewer: Then what about Ceres and Vesta? They’re round, but they don’t mind being considered asteroids.

 

Pluto: Really? Did you ever ask them what they think? Or did you just take Jupiter’s word for it? Nobody even bothered to consult Ceres, Vesta, and a couple of others in that area who happen to be round. No, it’s just, you’re in the asteroid belt, so you’re automatically no better than any little rock floating around out there. Don’t you humans have words for that kind of discrimination on your planet?

 

Interviewer: I think we’ve pretty much covered everything. It’s clear you’re sticking to your guns on this one.

 

Pluto: You bet I am. We’re talking about my identity, who I am. And not just my identity, but the identity of every small object in the solar system, especially those of us who have worked hard to attain hydrostatic equilibrium. If it’s good enough for Jupiter, it’s good enough for all of us. I’m not just going to sit here in the Kuiper Belt and let these Big Guys call their reality the only reality. No, I’ve already started mobilizing the little guys here in the Kuiper Belt who are in the same spherical shape as Jupiter. And the asteroid belt is next. Then the Oort Cloud. Some of those over-inflated gas giant egos may start to see their moons suddenly floating away and establishing their own orbits as planets. There is a revolution underway in the solar system, and it starts here.

 

You know, if they hadn’t messed with me, I might have just left things the way they are and been content to do my own thing. But the humans and these big planets that follow their every dictate made a huge mistake. They picked a fight with me, so now they’re getting what they deserve. The new rallying cry among the solar system’s underdogs is, “let a thousand planets bloom!” And mark my words, they will.

 

 

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Laurel Kornfeld's Planets: Adventures in Studying Astronomy [Jul. 7th, 2009|05:52 pm]

Okay, I admit it. I ripped off the title of this entry, or at least its style, from Mike Brown’s blog.

 

One of the most frequent questions I am asked when I advocate Pluto’s reinstatement as a planet is, what difference does this make in my life or in anyone else’s life? In many entries, I have discussed the disservice being done to children and to those of all ages studying astronomy who are being taught about only eight planets in our solar system or are, as Dr. Mark Sykes reported, wrongly being told that Pluto is an asteroid.

 

Most people upset by the 2006 IAU decision expressed their displeasure and moved on to other concerns. I may be wrong, but my guess is very few felt motivated to make major changes in their lives, such as going back to school and studying astronomy with the goal of learning as much as possible about the subject in order to best advocate the decision be overturned.

 

But that is exactly what I did. I have always had many interests and activities, all of which I love, and all of which compete for my attention. Astronomy was not at the top of the list in August 2006. All of that changed when the IAU issued its infamous ruling. I knew, felt as strongly as possible, that this decision was wrong. And I set about doing whatever I could to counter it, which started with educating myself on the details of planetary science.

 

I knew then that arguments such as “Pluto should stay a planet because it has always been one” or “because that is how I was raised,” or because “the mnemonic won’t work without Pluto” were not scientifically valid. If a case were to be made for Pluto retaining its planet status, that case must be built on logical arguments stemming from a solid foundation of scientific knowledge.

 

After reading more web sites about the solar system than I can count, I joined an astronomy club and took a class for volunteers who become qualified observers on open public nights. I spent a lot of time at weekly meetings listening to lectures on every aspect of astronomy. Then I took an un-graded online course offered by Swinburne University, based in Melbourne, Australia, titled “From Planets to the Universe.” That six-week course offered interaction with students worldwide discussing a lot of material in a very short time.

 

The benefits of online education are that students from very different backgrounds have the opportunity to learn from one another, to exchange differing perspectives, to throw around ideas and bounce them off one another. I enjoyed this to the point that I applied to Swinburne Astronomy Online’s Graduate Certificate program and was accepted.

 

Unlike the other courses, the courses in this program are graded. And here I was, with no real math or science background, in a course with high school teachers of chemistry and physics and people who had actually worked professionally in planetariums and observatories. The course title was “Exploring the Solar System.” And the instructor as well as the program director are members of the IAU! Thankfully, they were always fair and never used my online criticism of the IAU against me academically.

 

There is no way to summarize everything learned in a 12-week semester, but suffice it to say that our exploration of the solar system was comprehensive and detailed. This is not the solar system many of us learned in grade school, which was mainly a list of nine objects revolving around the Sun. This was an in-depth look at a solar system far more diverse, hosting a multitude of different objects, no two of which are exactly alike.

 

Some supporters of Pluto’s demotion argue that Pluto unfairly gets more attention than the larger moons of the gas giant planets because it is deemed a planet, and they are not. That certainly was not the case in this class. At one time, we knew little about the planets themselves and even less about their moons. Today, 40 plus years of robotic explorations have given us so much data about these moons, which really should be classified as secondary planets, that classes like the one I took spend an entire two-week period just on the moons and rings of the jovian planets. We do not have to choose between Pluto and these other, fascinating worlds. We can teach and study both.

 

One important lesson from studying the planets is that the robotic missions have given us much of our current knowledge of the solar system, knowledge that dispelled many previously held notions. Only 50 years ago, many believed Venus hosted lush vegetation and that Mars may host intelligent life. Now we know that although it is sometimes called Earth’s “sister planet,” Venus’ heavy atmosphere of sulfur dioxide and its high temperature and pressure make it impossible for any life to exist on that planet. We have explored Mars from orbit and on the ground and now know that its tenuous atmosphere and lack of a magnetic field preclude anything other than microbial life.

 

We have learned that while the four jovian planets used to be lumped into one group, “gas giants,” Uranus and Neptune are actually different enough from Jupiter and Saturn to merit being placed in a separate category, the ice giants. While Jupiter and Saturn are composed mostly of hydrogen and helium, the two outermost jovians, Uranus and Neptune, are made up of hydrogen compounds such as methane, ammonia, and water plus small amounts of hydrogen, helium, and rock. Uranus and Neptune are believed to have liquid cores just as Jupiter and Saturn do, but their densities are akin to those of ices, likely a mixture of water, methane, and ammonia.

 

Mercury is now recognized as having a tenuous magnetic field and a very thin atmosphere, facts that contradict long-held views among astronomers that it had neither. The moons of the jovian planets are believed to have formed with those planets from the solar nebula, unlike Earth’s moon, which most scientists view as having been formed from a giant impact by a Mars-like body. Interestingly, Pluto’s moon Charon is believed to have been formed by a similar impact.

 

The point of all these facts is that in exploring the solar system through ground-based telescopes and robotic missions, we have come to learn that much of what was previously believed and even viewed as fact is wrong. Even though the largest planets are divided into the two categories of “terrestrials” and “jovians,” we have learned that no two planets in either category are exactly alike; in fact, each one is far more unique than its categorization would lead one to believe.

 

In astronomy, the more we learn, the more we find out we didn’t know and still don’t know. That is where the question of Pluto comes into the discussion. Pluto is estimated to be 70 percent rock and 30 percent ice. Uranus and Neptune are very icy, yet no one cites that fact to disqualify them from being considered planets. Earth in many ways is more similar to Pluto than to Jupiter, whose composition is similar to that of the Sun. Like Earth and the terrestrial planets, Pluto is differentiated geologically into core, mantle, and crust. The jovians are differentiated too, but they have inner cores of liquid molecular hydrogen, outer layers of hydrogen and helium (and several other gases in the case of Uranus and Neptune), and none has a solid surface.

 

With such a variety of characteristics and so much diversity, how can we possibly choose one factor and use that as the measuring stick for planethood? The answer is that we cannot because any characteristic chosen would be arbitrary. In the presence of so many factors and features, we need a planet definition that is broad enough to encompass all these objects. That leads us back to what it is they all have in common. And that answer is that they are all large enough to be shaped by their own gravity, which pulls them into a round shape, a condition known as hydrostatic equilibrium.

 

Among objects in hydrostatic equilibrium, we are likely to discover bodies with characteristics we cannot even imagine, both in this solar system and in others. Some may revolve around other planets. These differences do not mean the new objects are not planets, just that we may need to add new subcategories of planets as more is learned. As even Dr. Neil de Grasse Tyson admits, planetary science is still very much in its infancy. And that is not a time to be establishing narrow definitions, especially when we know an infusion of data about Pluto and the Kuiper Belt is coming within the next decade.

 

One of the best things about studying astronomy is the opportunity to “meet” and converse with people all over the world. These conversations have continued beyond the online classroom. Having been in the political world and dealt with very negative people who loved to put me down, publicly demonize me, and repeat ad nauseam how I was not good enough, I appreciate all the more the very positive, supportive classmates I’ve had. When I was afraid of failing the class—and the subsequent online ridicule if “Pluto haters” ever found out that “Plutogirl” failed astronomy—fellow students offered much valued encouragement and moral support. Their message was always, “you can do this.” Outside the classroom, that has largely been my experience with friends and acquaintances in the astronomy community, people who, ironically, I would never have met had Pluto not been demoted.

 

In the end, I passed the course with an 83 and discovered that one does not have to receive a perfect grade to have learned a tremendous amount. I look forward to doing a lot of writing about astronomy, including, as previously announced, writing a book about Pluto. Yet the fact remains that while most people go back to school to further their careers, I plan to continue this program because I want to do all I can to get Pluto reinstated as a planet. And in that process, I have re-discovered a fascinating field and many wonderful people, all of which make this a most worthwhile, meaningful effort.

 

 
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"Moving On" Is Not An Option [Jun. 16th, 2009|06:38 pm]
Last week's planet definition discussion at the American Astronomical Society's meeting in Pasadena, California, started the latest round of Internet discussions on the question of what is a planet. A portion of the session can be viewed online at http://www.ustream.tv/recorded/1633104 via Ustream, thanks to Pamela Gay of "Astronomy Cast." This hour-long broadcast covers only the second half of the discussion. I am trying to find out if there are any online broadcasts of the first half and of the question and answer session following the entire discussion. If anyone reading this is connected with the American Astronomical Society and knows of links for these, please post them in the comments section of this blog entry.

Dr. Alan Boyle twittered notes from the entire discussion, which he put together on the following site: http://family.boyle.net/plutonotes.htm . I encourage anyone interested in this debate to read these.

In a column written after the conference, which can be found here, http://cosmiclog.msnbc.msn.com/archive/2009/06/10/1959870.aspx , Boyle quotes Neil de Grasse Tyson saying it's time to move on from the what is a planet debate and address the many categories into which solar system objects can be classified, based on aspects such as shape, composition, geology, and suitability for life. "This is what we should be thinking about now, not arguing over the fricking definition of a planet," Tyson is quoted as saying.

It is interesting that of all speakers, Tyson is the one who makes this comment, as he is the one who re-energized this debate in the first place when he chose to design the solar system display at the American Museum of Natural History's Rose Center with only eight planets. He has done speaking tours as well as radio and TV interviews on this subject. He wrote an entire book on it. But suddenly, he decides it's time to move on? What gives?

In response to Tyson, Alan Stern, as quoted by Boyle, emphasizes that the way we think of planets should reflect the diversity of the solar system. Objects like Pluto make up the largest class of solar system planets, he notes.

An important aspect of diversity is the concept that many very different items can be encompassed in a broad category. Just think of the terms "plant" or "animal," and this is obvious. Why then, do some insist that there can be only two classes of planets, the terrestrials and the jovians? If we artificially limit our definitions that way, we will be forced to create "wastebasket categories" to accommodate the objects that do not fit our narrow proscriptions.

"Moving on" from a bad decision such as the IAU planet definition by letting that decision stand is a terrible idea and makes no sense. The fact that this issue continues to be debated illustrates that the IAU decision satisfied few people and created tremendous confusion.

Jean-Luc Margot of the University of California at Los Angeles proposed sticking to the IAU definition but defining all round objects, whether they are gravitationally dominant or not, whether they are moons, planets, or dwarf planets, as "worlds." Using this concept, "some worlds are planets, and others are not," he said.

Margot's approach does not really offer much that is new. By sticking with the IAU definition and then adding the term worlds plus the caveat "some worlds are planets, and some are not," he puts us right back at the problematic point we started from--the fact that the IAU definition classifies objects by where they are while ignoring what they are. If we're going to stick with the term planet, why not just come up with more adjectives to describe the many different types of planets we are discovering? Satellites like Titan and Ganymede can be referred to as "secondary planets" since their primary orbit is around another planet, and their secondary orbit is around the sun.

It is interesting to note that Mike Brown said he tries to avoid the discussion of whether or not Pluto should be classified as a planet altogether. He was for these small round objects being classed as planets before he was against it, and his blog title, "Mike Brown's Planets: Full and Dwarf" implies he considers dwarf planets a type of planet, which contradicts the IAU definition he now claims to support. Maybe he doesn't want to discuss the subject because he isn't sure which position he is taking on any particular day!

The opinions expressed at this conference reflect similar views expressed online covering the full spectrum of this debate. I am going to print one comment, written in response to a comment by me in the journal Nature in response to a June 3, 2009 article, "Quaternary Geologists Win Timescale Vote." The author sought to use the Pluto issue to illustrate an example of scientists reaching consensus, saying, "In 2006, astronomers reached a decision on the planetary status of Pluto; now, geologists may have done the same for the status of the Quaternary, the time period in which humans evolved and live today." The site is here: http://www.nature.com/news/2009/090603/full/459624a.html

When, in the comments section, I pointed out that saying "astronomers" reached a consensus on the status of Pluto is incorrect and disingenuous (given that, clearly, a consensus has not been reached), one respondent accused what he called the "Pluto is a planet gang" of hijacking the entire thread! Here is what he said:

"Incredible to see the Pluto-is-a-planet (because it was discovered by an American) gang highjack (sic) this item. Please, people, get over it! The decision has been made by the acknowledged international organisation (sic) in question. Feel unhappy about that? Your problem only! And don't come with that crap again about 'only a minority voted.' Only a minority seemed to be really interested to come to the vote. If this was important to you, you should have been there and have voted yourself. Every IAU voting member could have voted if he/she wanted. And those 'many astronomers' and the public said to be opposing the vote result: this is almost solely an American phenomena. It has much to do with the fact that Pluto was the only of the former 'planets' discovered by an American. The anti-movement regarding the IAU decision doesn't have a strong international footing at all..."

Another commenter said, "The reclassification of Pluto, it seems, is an accepted part of the curriculum and new teaching materials have already been produced. These things happen. Scientists redraw old conclusions based on new evidence. I can't see how correcting an error, even if it means some level of relearning, is a bad thing."

Unfortunately, the comments section was closed before I could respond to the remarks by the poster who repeated the false claim that it is only Americans disturbed by the IAU ruling--the writer who accused the "Pluto is a planet gang" (I'm in a gang?! Wow, I didn't know. Are pro-Pluto T-shirts going to be outlawed in schools now???) of hijacking the discussion.

Hijacking is an interesting choice of words given that the writer of the article chose to evoke the Pluto example to illustrate scientists reaching consensus. She brought the subject up, meaning it is fair game for comments. She should have known that Pluto is most certainly not an example to use of successful scientific consensus.

The author of the first comment (which is actually the last one on the page; I chose to quote it first because it is so outrageous) may be an expert on geology but clearly is out of touch when it comes to astronomy and public perceptions of it. He provides absolutely no proof to back up his statement that it is only Americans  who oppose the demotion. He would know this is not true if he took the time to join the many astronomy communities online, composed of both amateurs and professionals. On these sites, intense debate continues, and opposition to the IAU definition is expressed by people all over the world.  At Swinburne University, in Melbourne, Australia, which runs an online astronomy program, students from all over the world come together, and in the class I just completed, "Exploring the Solar System," many non-Americans clearly stated their unhappiness with the IAU planet definition.

"The decision has been made by the acknowledged organization," the commenter says. Has it? What makes the IAU the acknowledged organization? Many planetary scientists do not belong to the IAU. Most IAU members are not planetary scientists. The writer believes the claim that only a minority of IAU members voted is "crap." Maybe he is used to Iranian style votes. The fact is, out of 10,000 members, 424 voted. No absentee voting was allowed, so if for some reason a member could not stay until the last day of this two-week conference, he or she could not vote. Additionally, most of the original 2,500 attendees left assuming the resolution on the table would be the 12-planet one recommended by the IAU's own committee. How were they to know that one particular group of astronomers would violate the organization's own bylaws by proposing a new resolution without first vetting it by the appropriate committee as required, and then putting it to the floor of the General Assembly for a vote?

The other commenter reflects a sentiment that makes equally little sense--the view that what's done is done. "These things happen," he says, as if he were talking about a natural disaster such as a tornado or earthquake, something over which we have no control. He can't see how correcting an error is a bad thing? Then he should have no problem with voiding the IAU definition, which most certainly is an error. Why is it that when it supports his view, sticking with a problematic definition is okay, but when it does not support his view, the "error" must be changed?

I could not personally have been there and voted, as I am not a professional astronomer. But that raises yet another issue. There are up to 20 amateur astronomers for every professional. Amateurs do actual research and make discoveries. They are the ones who do most of the communication of astronomy with the public.  Many amateurs are as well-versed in the field as their professional peers. Several such people are active my astronomy club in Cranford, NJ, alone.

Why not give amateur astronomers a say in this discussion as well? This could easily be done through organizations such as the Astronomical Society of the Pacific or through establishing a new class of IAU membership for amateur astronomers. These people give many hours to astronomy with no compensation, simply for love of the subject, and they are the ones who are left trying to communicate the IAU's sloppy definition with a very confused public.

So much of this comes back to education and the concept that planets are names of important things to memorize. Before the age of space exploration, we knew little about the planets in our solar system, and even less about their moons. Children were taught to memorize because there was not much else to teach. The film "Universe," made in 1960 and once shown in introductory college astronomy classes, does no more than mention Uranus and Neptune by name as the planets between Saturn and distant Pluto.

That is far from today's reality, which is of a diverse, active solar system with a multitude of objects, certainly too many to memorize, but all of which have unique, fascinating features. Today we can substitute an in-depth education about the solar system and the different ways objects can be classified, as Tyson mentioned above, for simple memorization. It is less important that students be told that we have four jovian planets than that they understand what makes an object a jovian planet. Some say this is asking too much, especially of kids, but frankly, that is a cop out. Kids are smarter than we think. As many have said, children interested in dinosaurs learn, on their own, the many different names and types and what the characteristics of each type are. My nephew, not quite six, is fascinated by marine life. One day, he saw me wearing a dolphin T-shirt and pointed to one of many images on that shirt saying, "that's an electric eel!" I had owned the shirt for years and had never noticed this!

And unlike those who voted in Prague, he recognizes a planet when he sees one. One day, we were looking at pictures in Galaxy, a coffee table book I have with beautiful pictures of stars, planets, nebulae, galaxies, star clusters, etc. We looked at the section on asteroids and at several different asteroids, all with irregular shapes. Then we looked at Vesta, which is mostly spherical except for its south pole, which likely was knocked off by an impact with another asteroid. I asked him how this one (Vesta) is different from the other asteroids. "It's round," he answered immediately.

Even my younger nephew, age two-and-a-half, knows what a planet looks like. He cannot pronounce the letter "L," but he can look at an astronomy-related T-shirt I'm wearing, point to the round object, and say "panet."

And the older one understands fully well that Pluto is a planet not because his Aunt Laurel says so, but because it is round and circles the sun.

Charles Beichman, Executive Director of NASA's Exoplanet Science Institute, said, significantly, that he is all for teaching that there are 359 planets, counting exoplanets as well as those in our solar system.  

Mark Sykes emphasizes that any definition must be useful, noting that the geophysical definition that classifies an object as a planet if it has attained hydrostatic equilibrium, is much easier to both teach and understand than the dynamical definition. The latter is a subset of the former, but the opposite is not the case. And as my little nephew demonstrates, even a two-year-old can recognize something round.

Avoiding this topic will not make it go away. A mistake was made, and it must be corrected, whether by the IAU, by another body, or by public consensus and usage. There are many people, including professional astronomers, amateur astronomers, and lay people who will never accept the IAU definition and will continue to fight it. I'm proud to be one of them.  We are nowhere near "the last word" on this topic, and as Weintraub said, we shouldn't be, as we know far less about the many types of planets out there than many so-called experts think.

Weintraub hit the nail on the head when he said, "the decision should be made by people in the trenches, not the IAU." That could be understood to include amateur astronomers, planetary scientists who are not IAU members, educators, planetarium directors, writers, and more.

Meanwhile, I encourage everyone to express your views on planet definition by commenting on science blogs when this topic comes up. You can arrange to get Google alerts for "Pluto," which will give you links whenever the subject is mentioned.

And keep supporting Pluto's fans in the arts! If you haven't done so already, consider purchasing Elias Fey's "Tribute to Clyde Tombaugh and the New Horizons Mission," an inspiring song that can be purchased online or as a single CD, from here: http://www.eliasfey.com/newhorizons.html

And don't move on!

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Pluto, Pluto Everywhere [Jun. 9th, 2009|08:08 pm]

Once again, Pluto is showing up everywhere--in books, DVDs, at conferences, even in a new wine created to honor the little planet.

Tonight, the debate over Pluto and what defines a planet will be discussed at a conference of the American Astronomical Society in Pasadena, California. Once again, Alan Stern and Neil de Grasse Tyson will be on stage together.  Even though I've heard all the arguments--and made most of them myself on the pro-Pluto side--I can't help but feel a twinge of regret at not being able to attend this conference personally. However, if Alan Stern is batting for Pluto, then at least I know the pro-Pluto side is in good hands.

David Grinspoon will be speaking for Pluto as well. You can read some of his views on this issue at http://flyingsinger.blogspot.com/2009/02/giving-pluto-another-chance.html

Just the fact that this discussion is taking place as we approach the three year mark of the IAU's horrendous decision is noteworthy in and of itself. The IAU wanted to "finish this," to "settle" it once and for all at the 2006 General Assembly. Whether in conferences, in print, or in culture, over and over again, the evidence is overwhelming that they failed miserably in that goal.

The number of Pluto-related items coming up could make a collector's dream. The DVD "Naming Pluto," which tells the story of how 11-year-old British schoolgirl Venetia Burney named Pluto in 1930 and subsequently shows her viewing Pluto through a telescope for the first time on the eve of her 89th birthday, can be purchased here: http://www.fatherfilms.com/shop . I already have my copy and will be posting a review of the DVD shortly. Father Films is also selling a "Naming Pluto" poster along with the DVD. Given Venetia's passing away only this April 30, it is fortuitous that the film was made while she was still around to be part of it.

Astronomy Now, a British astronomy magazine, is holding a contest for a free copy of "Naming Pluto." For details, visit http://www.astronomynow.com/AstronomyNowNamingPlutoCompetition.html . Anyone who wants to participate should act quickly because the deadline is this Friday, June 12. The winner will be chosen randomly from the entries who submit the correct answer to a specific question regarding Pluto and does so following the instructions on the web site above. Only one person can win, but everyone interested in the solar system and in public contributions to astronomy is encouraged to buy a copy of this DVD.

A group of California high school students didn't want to wait until their 80s to view Pluto through a telescope. They spent Memorial Day weekend conducting the first Salinas Valley Pluto Expedition over two nights. Read more about it here: http://www.thecalifornian.com/article/20090530/OPINION03/305300002/1014/RSS03 . Pluto reaches opposition, the best time of the year for viewing it, when it is opposite the Sun and out all night, on June 23, so now is an excellent time to try and see it. This is one of my personal life goals, but the weather here in central NJ on the weekends when observatories are open has not been cooperating so far. In this state, we need a dark sky site, as even the most powerful telescopes cannot resolve such a tiny, far away object with the light and air pollution in our many heavily populated areas.

In March and April, NASA ran an online contest called "Mission Madness" in which people could vote for their favorite NASA missions, past and present. Out of several rounds, New Horizons finished in the Final Four, showing once again the widespread interest in exploring Pluto.

And not one but two new books will soon be published on the subject of Pluto. As I said in an earlier post, I plan to write a book about Pluto as well, but in this case, these are not "competition." It's a matter of "the more, the merrier," about putting out as much information from as many viewpoints as possible so the ultimate decision can be made by the people, not by a tiny percent of a closed group.

The first book, by award-winning science writer Alan Boyle, is called The Case for Pluto, which makes the case that Pluto should be reinstated as a planet and counters arguments made in previous publications against this viewpoint. Current plans are for it to come out in October of this year. You can learn more about this book and order a copy from http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470505443.html. If you're one of those people who wants to present strong, credible arguments for Pluto beyond simple statements such as "it was always considered a planet," this book should be a great resource. I will write a review of it in a future blog entry. The timing of that entry will depend on when I receive and read the book.

Another book, one I just found out about last night, is co-written by two authors representing opposing sides in this debate. Pluto Confidential: An Insider Account of the Ongoing Battles Over the Status of Pluto was co-authored by Laurence A. Marshall, an astronomer and educator who voted for the IAU resolution, and by Stephen P. Maran, a NASA scientist who signed the petition opposing the IAU planet definition. That book, which comes out in August of this year, can be ordered from http://www.amazon.com/Pluto-Confidential-Insider-Account-Ongoing/dp/1933771801 or from another bookselling website. It is always good to be familiar with both sides of a debate, even if one is very partisan on one side, so this should be a great resource. Again, I will write a review of it as soon as I obtain and read the book.

Speaking of presenting both sides, I do give credit to the IAU for including this blog in its International Year of Astronomy Portal to the Universe Project. You can find this link here: http://www.portaltotheuniverse.org/blogs/feeds/view/105/ featuring my picture with a spacescape and Pluto in the background!

A third book, Unscientific America: How Scientific Illiteracy Threatens Our Future, examines science illiteracy in the US, beginning with the example of the Pluto debate. Authors Chris Mooney and Sheril Kirschenbaum are strong supporters of Pluto retaining its planet status and begin their book by discussing the Pluto debate. The book will be available at http://www.amazon.com/Unscientific-America-Scientific-Illiteracy-Threatens/dp/0465013058 . It has not been released yet though you can read more about it here: http://scienceblogs.com/intersection/2008/12/unscientific_america.php Again, a review will be forthcoming here once I obtain my copy of the book.

Anyone taking a trip to the Lowell Observatory in Flagstaff, Arizona, the site where Pluto was first discovered in 1930, can literally vote with their dollars for Pluto's planet status. The observatory features donation jars with four categories asking what Pluto should be called: planet, dwarf planet, other, and "I don't care; I just want to support Lowell!" You can see the donation jars here: http://1.bp.blogspot.com/_rqd6DTuStOE/Si4T9IH82JI/AAAAAAAAAIo/0lLhHre5qvk/s1600-h/Lowell-Pluto_donations.jpg . As of June 4, 2009, the Planet jar is ahead with $1,049.65 compared with $739.21 for "I don't care; I just want to support Lowell," $417.06 for Dwarf Planet (note it never says dwarf planets are not planets at all!), and $162.52 for Other.

T-shirt afficionados can wear their support for Pluto by purchasing shirts with many designs from http://besttees.org/cgi-bin/cpshop.pl?i=pluto or from the ever popular Cafe Press.

Anyone on Facebook can join the fast-growing cause, "Bring Pluto Back" at http://apps.facebook.com/causes/241322/14617099?m=830bc981 . The rapidly-growing group has 593 members and counting, including a few professional astronomers.

2 Skinnee Js have released a tune, "Pluto," where they act as "attorneys" representing Pluto. More about this song can be found at http://johnstrophyrun.blogspot.com/2009/04/pluto-is-planet.html

And difficult as this may be to believe, you can now support Pluto by drinking wine--specifically, "Planet Pluto Meritage Red Table Wine" made in California, created to oppose the IAU demotion and support Pluto's planet status. The wine can be ordered from this site: http://planetplutowine.com/planetpluto/home.html

Over the last three months, I have been busy completing an astronomy class, "Exploring the Solar System," through the Swinburne Astronomy Online Graduate Certificate Program. As a writer with no formal training in astronomy, I felt this program would provide me with that training in a stimulating online environment, where I could "talk" with people all over the world via class newsgroups. It has been an amazing experience, and I will write more about that too. Anyone interested in pursuing courses in astronomy should consider this program.  It is most certainly not a "degree mill"; be prepared to work hard and be challenged. But it is well worth it. More information is available here: http://astronomy.swin.edu.au/sao/

Finally, in line with the theme of scientific illiteracy, I would like to share a story that to me illustrates the core of the problem with the IAU and its planet definition. Writers, bloggers, educators, astronomers, etc. are of course free to say and print whatever they want online. That does not mean their comments are some sort of gospel truth, even if they are written by astronomers. In the Discovery Space "Twisted Physics"  blog, writer Jennifer Ouellette, in discussing the passing of Venetia Burney, refers to Pluto as an "erstwhile planet," (erstwhile meaning former) meaning of course, she subsequently received an immediate objection comment from me regarding use of the word "erstwhile," as saying that amounts to taking the IAU definition as fact rather than as one interpretation in an ongoing debate. Ouellette responded by writing, "Pluto is an erstwhile planet. Deal with it. If/when the IAU reverses its decision, we'll all revise our descriptions accordingly." The link is here: http://blogs.discovery.com/twisted_physics/2009/05/rip-venetia-phair.html?cid=6a00d8341bf67c53ef011570a25cf3970b

Now just a minute. "If/when the IAU reverses its decision, we'll all revise our descriptions accordingly???" Is the IAU the arbiter of reality? Do they decide what is "Truth," and do all of us just blindly follow? Isn't science supposed to involve at least some brain activity, in other words, thinking for oneself? "We'll all follow" is, at least to me, a frightening statement. As Star Trek's Dr. McCoy would say, "What is this, the Dark Ages?"

Instead of "following," let's all lead. The IAU is only one venue in this debate, but as we approach their August General Assembly, it is crucial that they continue to hear from as many people as possible requesting they re-open the planet definition issue. Keep writing to IAU president Catherine Cesarsky at catherine.cesarsky@cea.fr and to the IAU in general at iau@iap.fr ;cite the professional astronomers who dissent with the 2006 definition, and ask that this year, the organization clean up the mess they made of this issue. It's not over!!!


 

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"Not Farewell, but Fare Forward, Voyagers" [May. 12th, 2009|02:54 pm]

It was with tremendous sadness that I learned last week that Venetia Burney Phair, the 11-year-old girl who in 1930 first suggested the name Pluto for the newly-discovered planet, passed away in England at the age of 90. That’s one more person whom I will now never get the chance to meet.

 

New Horizons Principal Investigator Dr. Alan Stern did get that opportunity in late 2006 after inviting Phair to the launch of New Horizons. Phair could not make the trip to Cape Canaveral, so instead Stern visited her in England, where he presented her with a plaque commemorating the use of her name on one of New Horizons' scientific instruments, the Venetia Burney Student Dust Counter. That device was chosen to bear her name because it was built entirely by students, echoing Phair’s own student involvement in astronomy by naming Pluto and intended as an example to encourage young people to pursue an interest in science.

 

The story of Phair’s naming of Pluto is told in a 13-minute film now available for purchase online. Titled “Naming Pluto,” it can be bought from this site: http://www.fatherfilms.com/shop .

 

Stern describes Phair as “a thoroughly likeable, intelligent, and endearing woman.” He and the New Horizons team pay tribute to her in their latest blog entry at http://pluto.jhuapl.edu/news_center/news/20090508.php .

 

Phair was fortunate in that her grandfather, Falconer Madan, was well connected in the academic world, being friends with Oxford astronomy professor Herbert Hall Turner. Madan presented Turner with Phair’s choice of name, ironically at the same time the Royal Astronomical Society was discussing what to call the new planet.

 

Today, when the only connection a young person or one of any age needs to potentially have such an impact is a working Internet connection, opportunities abound for everyone to potentially make a lasting contribution, whether to astronomy or any other field of interest. Clyde Tombaugh, who was born in 1906, had to scramble to find astronomy books with which to educate himself as a boy interested in the field. Today, hundreds of books on the subject are geared toward people of all ages and levels of education, and countless web sites can be accessed from the comforts of one’s home.

 

If anything, making a significant accomplishment to astronomy is easier and more accessible to any person today than in any other time in history. Most of all, this should be emphasized to young people when educating them about Phair and holding her up as an example for what any of them can do.

 

Phair—unlike this writer, a fake redhead who walks around wearing “Save Pluto” shirts—is the original Pluto girl. It was her interests in both classical mythology and astronomy that led her to suggest the name of the Roman ruler of the underworld for the newly discovered remote, enigmatic planet.

 

As with many discoveries, there was some contention before the name Pluto was formally adopted in May 1930. Constance Lowell, the widow of Percival Lowell, who had built the Lowell Observatory in Flagstaff, Arizona in 1894 and who had initiated the search for a trans-Neptunian planet but died in 1916, advocated both “Lowell” and her own name, “Constance.” Other names considered were Zeus, Kronos, and Persephone.  Zeus and Kronos were not appropriate, as these are the Greek names for Jupiter and Saturn, and the name Persephone had already been given to an asteroid.

 

One person strongly reacted against the name Pluto, which he equated with Satan. Captain Charles E. Freeman, superintendent of the US Naval Observatory in Washington, is said to have remarked, “Pluto is the prototype of Satan in many minds, and drops out for that reason, perhaps.”

 

But astronomers at the Lowell Observatory immediately saw the appropriateness of the name Pluto and unanimously chose it for the new planet.

 

Freeman’s equating of the mythological Pluto with Satan is reflective of a lack of familiarity with Greek and Roman mythology. The underworld that the mythic Pluto ruled was the abode of the dead, not the hell of eternal punishment. Titled Hades, it was an all encompassing region that did have a designated punishment area for evildoers, known as Tartarus, but also contained many other sections including a version of paradise for the virtuous dead, known as the Elysian Fields. In some versions of the myth, there is support for reincarnation, with souls preparing for rebirth guided by Pluto’s wife, Persephone, back to the world of the living after drinking from the River Lethe, the river of forgetfulness that induced amnesia for past lives and existence in the underworld.

 

Even though I never met her, I feel a kinship to Venetia Phair, sharing her interests in both mythology and astronomy, interests that all too often today take a back seat to so-called celebrity gossip among young people who do not know the gems they are missing.

 

And I cannot help but notice several uncanny coincidences that strengthen this personal feeling of connection.

 

Phair’s great uncle, Henry Madan, a housemaster at Eaton, had proposed the names Phobos and Deimos for the moons of Mars in 1877. In Roman mythology, these are the names of attendants of Mars, the god of war.

 

This spring, desiring some formal education in astronomy, which I do not have, I enrolled in an online Graduate Certificate in Astronomy program at Swinburne University, based in Melbourne, Australia. The class in which I am enrolled, “Exploring the Solar System,” has two sections, titled Phobos and Deimos. I am in the Phobos section.

 

Venetia Phair’s obituary notes she was born July 11, 1918. My birthday is one day earlier, July 10, and both my college roommate and my running mate in my campaign for a local council seat in 2005 were born on July 11 (though in different years).

 

T.S. Eliot, one of my favorite writers, begins his famous poem The Wasteland, a prophetic social commentary on the 20th century and the meaninglessness of so many ideals previously valued, begins that work with the line, “April is the cruelest month.” It is one thing to find barrenness and death in late autumn, the place where they belong in the cycle of nature. It is an entirely different thing to find barrenness and death in what should be the heart of spring, a time of flowers and new life.

 

April 2009 was a personal heartbreaker for me. From seemingly out of nowhere, like a thief in the night, pancreatic cancer stole the life of my 95-year-old grandmother, Ethel Rosengarten, who died on April 20, ten days before Venetia’s death. What does a fighter like me do when the death sentence comes, and there is no one and no way to fight? We sat at her bedside, talked to her, and sang, even when she was unresponsive. I pleaded with a nurse to do something, a fleeting vestige of that childhood part of us all that believes the grownup world knows all the answers and can solve all the problems.

 

Only a week before my grandmother died, my best friend and I visited her in the hospital, both wearing “Save Pluto” shirts we had ordered online. That day, which happened to be both Passover and Easter, she was doing better and was quite popular, with visitors constantly coming. “Pluto,” she read from my shirt, smiling, knowing of my fascination with this tiny planet.  “We’ll look at the picture of Pluto from New Horizons when it gets there in 2015,” I said, hoping against hope that by sheer force of will, I could make it come true.

 

But it was not to be. Tragically, neither she nor Venetia Burney Phair will be around for that day.

 

And I could not help but think a lot about death and about Pluto, that mythological representation of death and rebirth, of the unknown and enigmatic, Pluto, whose story reflects the universal human hope that maybe death is not the end of everything, just the end of one cycle.

 

Eliot, in The Four Quartets, conveys this sentiment in his description of life as a voyage:

 

“'Fare forward, you who think that you are voyaging;
You are not those who saw the harbor
Receding, or those who will disembark.
Here between the hither and farther shore
While time is withdrawn, consider the future
And the past with an equal mind.
At the moment which is not of action or inaction
You can receive this: "on whatever sphere of being
The mind of a man may be intent

At the time of death"—that is the one action
(And the time of death is every moment)
Which shall fructify in the lives of others:
And do not think of the fruit of action.
Fare forward.
O voyagers, O seamen, You who came to port, and you whose bodies
Will suffer the trial and judgment of the sea,
Or whatever event, this is your real destination.'
So Krishna, as when he admonished Arjuna
On the field of battle.
Not fare well,
But fare forward, voyagers.”

 

In response to Pluto’s demotion, Phair said she was largely indifferent but then noted she preferred that Pluto remain a planet. I confidently believe that in the long term, it will, and many, many others are convinced of the same.

 

So to two special women, one known internationally for naming my favorite planet and the other a personal loved one with her own life of courageous accomplishments that spanned the 20th century and beyond, I choose not to say good-bye, but to use Eliot’s words instead.

 

“Not farewell, but fare forward, voyagers.”

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IYA 2009 [May. 1st, 2009|12:23 am]
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Sorry, Mike Brown, but the Debate Is Not Settled [Mar. 23rd, 2009|04:29 pm]

Sorry, Mike Brown, but the debate over Pluto’s status and what defines a planet is not settled.

In response to Illinois’ proud proclamation of March 13 as “Pluto Day,” Dr. Mike Brown, discoverer of Eris and in his own mind, the person who “put the solar system in order by killing Pluto” claims in a National Geographic article of March 11, 2009 that the planet debate is “settled,” that there is no longer “ a vigorous debate” going on about planet definition, and that only a handful of scientists continue to lobby for Pluto’s reinstatement while the rest of astronomers have “moved on.”

Brown even goes so far as to condemn the Illinois resolution as “dangerous to public understanding of science.”

Talk about denial.

At the Isaac Asimov Memorial Debate, held at the American Museum of Natural History on March 10, 2009, a panel of six planetary scientists moderated by Dr. Neil deGrasse Tyson made it abundantly clear that the issue of what constitutes a planet is far from settled--both at the lower end with small objects like Ceres and Pluto and at the upper end with brown dwarfs and sub-brown dwarfs that straddle the boundary between planets and stars.

Even dynamicists like Dr. Steve Soter and Dr. Jack Lissauer, who support defining only the eight gravitationally dominant objects in our solar system as planets, expressed dissatisfaction with the IAU definition and its vague wording requiring a planet to “clear the neighborhood of its orbit.”

“Now about clearing, that was an unfortunate term, because planets never fully clear their orbits,” Soter said.

Even Tyson departed from his usual “I killed Pluto” stance, admitting that “perhaps planetary science is still in its infancy and has no business classifying anything at all yet.”

Tyson should probably stop titling his lectures “How I Killed Pluto, and Why Pluto Had It Coming.” As glib as he is, he can certainly come up with a better titled that more accurately portrays his discussion and does justice to this issue. Leave silly titles like that to Brown.

With an audience of about 1,000 people seven astronomers who disagree on whether or not Pluto should be included as a planet all expressed dissatisfaction with the IAU definition, which Brown still claims “settled” the debate.

This was the third debate on planet definition that I attended personally. The first was in Brookline, MA, in February 2007, sponsored by the Clay Observatory. The second was, of course, the two-and-a-half day Great Planet Debate in August 2008 at the Johns Hopkins University Applied Physics Laboratory in Laurel, MD.

Notably, Brown did not attend or participate in any of these events.

Every one of these public debates was congenial and friendly. Professional astronomers showed that they could disagree with one another and still laugh together and be entertaining. In each case, public input was welcomed and valued. In each case, presenters provided in depth discussion of the many nuances and factors going into the debate--how planets were formed, planetary migration, what we learn from exoplanets, the low and high end of planet definition, concepts such as gravitational dominance and hydrostatic equilibrium, and more.

In other words, in each case, the public was presented with the complexity of the issues involved, which all illustrate that what is needed most is time and deliberation, not a quick rush to a “solution,” as was done by the IAU in 2006.

Therefore, every one of these debates can be said to have successfully addressed this issue in a way that the IAU did not.

Yet Brown, who seems to get some strange pleasure out of repeatedly talking about nails and coffins in relation to Pluto, bases his claim that the debate is “settled” on this rushed, political IAU decision, in spite of the ongoing planet definition debates, including those held by the American and European Geophysical Unions, that continue to be held to this day.

It sure sound a lot like denial to me--either that or some personal need by Brown to view himself as the one who put the solar system in order--a description that maybe could be applied to Nicholas Copernicus, Galileo, Johannes Kepler, or Isaac Newton, each of whom outlined a then-new set of principles about the organization of the solar system--if to anyone at all.

In addition to Brown’s having been for Pluto and Eris being labeled as planets before being against it, he intersperses discussion of his personal shaping of the solar system with strange comments about his family that contribute nothing to the rich discussion of what makes a planet and revolve more around himself than around planetary science.

One of the stories he loves to tell is how, on the night he discovered Eris, which he then considered the tenth planet, he phoned his pregnant wife to tell her the exciting news. Her response? According to Brown, it was “oh, that’s nice. Could you remember to pick up milk on the way home?”

Pick up milk?! Now imagine an actor who just won an Oscar or a politician who just won an election calling his or her spouse with the ecstatic news, only to have that spouse respond with, “remember to bring home milk!” Pregnant or not, many people would consider that grounds for divorce! So maybe Brown is trying to overcompensate for the lack of recognition of his accomplishments at home by exaggerating his “shaping the solar system” when discussing astronomy in public.

His other technique, the equivalent of politicians kissing babies, is the non-stop talk about his daughter, as if that somehow softens the image he cultivates as “the man who killed Pluto.” His blog entries, when not discussing nails in Pluto’s coffin, go on and on about his daughter saying, “daddy, daddy, daddy, look, look, look, I found a planet” when out observing the California sky. Personally, I can’t wait for the day in 2015 when she sees the photos of Pluto from New Horizons and says, “daddy, daddy, daddy, that Pluto sure looks like a planet to me!”

The point in all this is, Brown’s claim that the Pluto debate is “settled,” is far more about himself than it is about Pluto, Eris, or any Kuiper Belt Object.

And the statement that a non-binding, symbolic resolution is “dangerous to public understanding of science” is just plain ludicrous. If anything is harmful to public understanding of science, it is the notion that a self-appointed authoritative body such as the IAU can have four percent of its members adopt a nonsensical planet definition and then blindly expect the world to accept it because they, the “authorities,” have spoken.

In a Discover Magazine discussion of the Illinois proclamation, StevoR, a frequent commentator whose arguments make more sense than those of the IAU, listed twelve compelling reasons why Pluto is a planet, which, with his permission, I would like to quote here:

_* 12 REASONS WHY PLUTO _IS_ A PLANET : *__

 1. The orbital clearing condition which was made up to eliminate Pluto is fatally flawed because it is itself too hard to define – what is meant by “cleared” & how far from the planet must the orbit be “cleared”? Strictly speaking this eliminates any object in our solar system as all planets have objects – comets and asteroids crossing their orbits, Jupiter has Trojan asteroids, Neptune has Pluto crossing its orbit, Earth has numerous near-earth asteroids such as Eros and so forth. A consistent application of this criterion would exclude all the planets of our solar system! (Even Mercury has sun-crossing comets and Icarus!)

2. A reductio ad absurdum approach reveals that this criterion fails because it leads to absurd results ruling out objects we’d clearly consider planets based on their location – a Jupiter or Earth-type planet hypothetically located in the Oort cloud would be excluded yet we’d clearly still call it a planet otherwise! Why then draw the line at smaller objects that would otherwise fit the planetary description ie. rounded by their own gravity and directly orbiting the Sun? (Or their common centre of gravity for “double planets.”)

3. In relation to forming planetary systems including historically our own, planetary orbits cross and interact in unpredictable ways. By the IAU’s “orbital clearance” criterion, these objects - even ones Jupiter sized and above – are NOT strictly planets because their orbits are not yet cleared – again failing the ‘reductio ad absurdum’ test. Eg : The earth before it was hit by the Mars-sized body that became our moon would NOT have been termed a “planet” because it had that Mars-sized object in its orbital path.

4. From point 3 above, we see that by IAU definitions planets cannot collide because their neighbourhood then isn’t clear – nor can they exist as binaries or “double planets” by the same logic. This appears contrary to common-sense and consistency. It also has potential for creating trouble with exoplanets given the so-far hypothetical but quite probable possibility that some extrasolar planets may exist in this form – even potentially twin Neptunes or Jupiters. Given that some would describe the Earth-Moon system as well as the Pluto-Charon one as such a ‘double planet,’ then a strict definition of the IAU rule may rule our Earth out of planetary status again clearly a ridiculous proposition!

5. Inconsistency and inapplicability in regard to exoplanets - the IAU definition excluded planets of other stars. Yet surely planets orbiting other suns are no less planets for not orbiting our star! Even more tellingly, at least one of the Pulsar planets, PSR B 1257+12 e is tiny – smaller than Pluto with only 1/5th our Moon’s mass raising a glaring inconsistency. Given PSR1257+12 e is counted as an exoplanet then Pluto, equally, should clearly count as a planet for the sake of consistency.

6. The “dwarf planet-dwarf” star analogy – just as dwarf stars are still stars so surely are dwarf planets still planets. Extrapolating the “dwarf planets don’t count” line to stellar astronomy would imply the Sun is not a proper star nor are 99 % of all stars – those 90% on the main-sequence and the 10 % of “stellar corpses” such as white dwarfs and neutron stars. Moreover, as with stars, the smaller the object’s size the greater its numbers! Therefore calling a planet “dwarf” should NOT rule it out of being considered a proper planet.

7. Problems with the “classical” planets term : the IAU defined “classical”; planets are restricted to our Earth’s solar system and it is hard to see how they apply to exoplanets or how the term can work usefully as a scientific description. Apart from differing immensely – Earth and Pluto are arguably far more similar worlds than Earth and Jupiter or Mercury or Neptune – they also clash with a previous understanding arguably much more apt of classical planets being those visible to the “classical” age peoples – the five original bright wanderers – Mercury, Venus, Mars, Jupiter, & Saturn. If that ‘classical’ term is retained, it seems best used in this sense as a historical and descriptive sense.

8. Sentimental, cultural and historical reasons – noting Pluto’s long-established and culturally scientific place as a recognised planet from its discovery in 1930 until its demotion in 2006. This also covers the slight to Clyde Tombaugh’s memory, widow and family plus the perceived political aspect of stripping from planetary status the sole planet discovered by an American. (BTW. I’m an Aussie with no connection to the US.)

9. The undemocratic manner in which the IAU ruling was made. For instance, of the 10,000 IAU members only 2,500 attended the Prague meeting that demoted Pluto and rejected the other planetary candidates, Eris, Charon and Ceres from planetary status. Furthermore, of those 2,500 only the merest handful – just 424 actually got to vote making therefore a very unrepresentative decision. Among those to excluded from voting and arguing their case in that last minute meeting were some highly relevant and articulate people - notably Pluto expert Alan S. Stern, head of the New Horizons mission. Stern’s summary of the IAU judgment was blunt : “ … idiotic. I have nothing but ridicule for this decision.” (Alan Stern, P.28, ‘Astronomy Now’, October, 2006.)

10. The decision to demote Pluto has had a generally negative reception from the general public and on public perceptions of astronomers - just ask the Illinoisans who must’ve had a fair number of people demand their action.

11. The first proposed IAU definition of ‘planet’ (that would have included Pluto, Eris and Ceres) was much better in terms of logical consistency and general application as well as being more easily explained, understand and applied - ie. two main criteria for planets are that they are objects circling a star directly which are not themselves stars or brown dwarfs and are rounded by their own gravity.

12. Pluto is a complex world with the key aspects of planets - it dominates its own satellite system of three moons (Charon, Hydra & Nix), has its own atmosphere, has a complex geology and weather system (of nitrogen frosting based on HST images and theory) and meets all the criteria for planethood with the sole exception of the problematic and, I believe, absurd “orbital clearance” criterion.”

As a personal note, I will add that I have the privilege of knowing the chief Illinois resident who lobbied for this resolution, Siobhan Elias of Streator, Illinois, the birthplace of Clyde Tombaugh.

Additionally, regarding the IAU ruling, most of the 2,500 attendees at the General Assembly who left before the vote fully believed that the resolution being voted on would be the one recommended by the IAU’s Planet Definition Committee, which advocated including Pluto, Charon, Ceres, and Eris as planets. They had no idea that a tiny group would violate the IAU’s own bylaws and push through a completely different resolution, the one that demoted Pluto, on the last day, with no vetting by the appropriate committee before placement on the floor for a vote. In other words, the astronomers who left early were deceived.

All this can be changed. One way you can make a difference is by joining the new Facebook cause, “Bring Pluto Back,” at http://apps.facebook.com/causes/241322?m=05304c83 . If you’re not a member of Facebook, joining is free, and there are a lot of pro-Pluto groups and causes to join and support. Organizers of this latest one encourage all to print out their protest letters and snail mail them back so they can be sent in bulk to the IAU.

The many issues involved in planet definition are presented in a thorough, objective analysis online at http://astroprofspage.com/ in a ten-part blog series by the Astroprof, a college professor of physics and astronomy, that began on February 2 and ended on March 10, 2009. Though there is a lot to read, I encourage anyone interested in this issue to take the time and read all ten entries.

Meanwhile, the real status of the Pluto debate? To be continued…

 

 

 

 

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New Mexico and Illinois Have It Right About Pluto [Mar. 9th, 2009|10:04 pm]
The legislatures of New Mexico and Illinois seem to have much more sense than a certain 424 IAU members who voted in Prague on August 24, 2006. New Mexico, for the third year in a row, passed a resolution honoring February 18, the anniversary of the day Pluto was discovered, as Planet Pluto Day in their state. And Illinois, thanks largely to lobbying by Pluto supporter and Streator native Siobhan Elias, adopted a resolution recognizing March 13, the anniversary of the day Pluto's discovery was announced to the world, as Pluto Day in Illinois, honoring Clyde Tombaugh. Both states openly defied the IAU decree and declared Pluto to be a full-fledged planet, at least when it is over their skies.

Here is the text of both resolutions:

1) New Mexico

.177166.1

HOUSE MEMORIAL 40

49

TH LEGISLATURE - STATE OF NEW MEXICO - FIRST SESSION, 2009

INTRODUCED BY

Joni Marie Gutierrez

A MEMORIAL

PROCLAIMING FEBRUARY 18, 2009 AS "PLUTO IS A PLANET IN NEW

MEXICO DAY" AT THE HOUSE OF REPRESENTATIVES AND HONORING THE

SEVENTY-NINTH ANNIVERSARY OF THE DISCOVERY OF PLUTO BY CLYDE

TOMBAUGH.

WHEREAS, Dr. Clyde Tombaugh is best known for discovering

the planet Pluto in 1930, but he also discovered and named a

total of fourteen asteroids; and

WHEREAS, Dr. Tombaugh also engaged in serious scientific

research regarding unidentified flying objects; and

WHEREAS, on August 20, 1949, Dr. Tombaugh claimed to have

seen several unidentified flying objects near Las Cruces,

stating "I doubt that the phenomenon was any terrestrial

reflection because ... nothing of the kind has ever appeared

before or since"; and

.177166.1

- 2 -

WHEREAS, Dr. Tombaugh worked at the White Sands missile

range during the 1950s and taught astronomy at New Mexico state

university from 1955 until his retirement in 1973; and

WHEREAS, Dr. Tombaugh died in Las Cruces in 1997; and

WHEREAS, approximately one ounce of his ashes is being

carried on the New Horizons spacecraft that was launched in

2006 and that is scheduled for a fly-by of Pluto in 2014; and

WHEREAS, Pluto was recognized as a planet for seventy-five

years; and

WHEREAS, Dr. Clyde Tombaugh's discoveries have shaped and

advanced the field of astronomy; and

WHEREAS, his enduring scientific accomplishments and

personal contributions shine brightly on New Mexico state

university as well as the rest of the world; and

WHEREAS, New Mexico is proud to recognize these

accomplishments and contributions; and

WHEREAS, thanks to Dr. Clyde Tombaugh, Pluto will always

be considered a planet in New Mexico;

NOW, THEREFORE, BE IT RESOLVED BY THE HOUSE OF

REPRESENTATIVES OF THE STATE OF NEW MEXICO that February 18,

2009 be proclaimed "Pluto is a Planet in New Mexico Day" at the

house of representatives in honor of the seventy-ninth

anniversary of the discovery of Pluto by Clyde Tombaugh; and

BE IT FURTHER RESOLVED that copies of this memorial be

transmitted to the family members of Dr. Clyde Tombaugh.
2) Illinois



 
  SR0046 LRB096 04130 KXB 14171 r

 
1 
SENATE RESOLUTION

 
2 WHEREAS, Clyde Tombaugh, discoverer of the planet Pluto,
3 was born on a farm near the Illinois community of Streator; and
 
4 WHEREAS, Dr. Tombaugh served as a researcher at the
5 prestigious Lowell Observatory in Flagstaff, Arizona; and
 
6 WHEREAS, Dr. Tombaugh first detected the presence of Pluto
7 in 1930; and
 
8 WHEREAS, Dr. Tombaugh is so far the only Illinoisan and
9 only American to ever discover a planet; and
 
10 WHEREAS, For more than 75 years, Pluto was considered the
11 ninth planet of the Solar System; and
 
12 WHEREAS, A spacecraft called New Horizons was launched in
13 January 2006 to explore Pluto in the year 2015; and
 
14 WHEREAS, Pluto has three moons: Charon, Nix and Hydra; and
 
15 WHEREAS, Pluto's average orbit is more than three billion
16 miles from the sun; and
 
17 WHEREAS, Pluto was unfairly downgraded to a "dwarf" planet

Both proclamations have generated some less than complimentary responses by newspaper columnists and bloggers. Who are these politicians, who claim to know better than the IAU? the writers rant. Don't they have anything better to do? Why are they contradicting a consensus of the scientific community? What a lot of these commentators are missing is the fact that there is no scientific consensus on the status of Pluto among the scientific community.

Certain people with a particular agenda like to act as though such a consensus exists when it really does not. Dr. Neil deGrasse Tyson and Dr. Mike Brown both routinely give talks titled, "How I Killed Pluto, and Why Pluto Had It Coming." The two of them can compete with one another over who committed the dirty deed, but that does not change the fact that Pluto as a planet is not dead.

Journalists, if they do their job as it should be done, are responsible for telling both sides in any controversy. In the case of columnists who deride lawmakers in New Mexico and Illinois for enacting pro-Pluto resolutions, the writers fail to note that the 424 members of the IAU (out of a total of 10,000 members plus many planetary scientists who do not belong to the IAU) who voted on this acted more like politicians than like scientists at the 2006 General Assembly. Both the process and the outcome of the planet definition session are political. One need only view the video of that session, still on the IAU web site under the category of the 2006 General Assembly, to see a spectacle that is part politics, part circus, and no science whatsoever.

Legislative bodies at all levels frequently pass symbolic resolutions honoring individuals, ethnic and advocacy groups, awareness weeks and months for various causes, etc. These resolutions do not take up any significant amount of time and do not cost taxpayers any money. Any claims that these are being passed to avoid addressing other, more serious issues, are ludicrous.
 
Resolutions like the ones above, both of which honor a native son and his accomplishments (Tombaugh worked in New Mexico for many years and was born in Illinois) are not adopted with any notion of forcing their viewpoints on people. The legislatures of New Mexico and Illinois are not telling anyone they have to reject the IAU decree; they are simply expressing the sentiment of these governing bodies, in this case partly as a protest, with no illusion that anyone, including teachers, will be compelled to comply with that sentiment.
 
Hopefully, teachers are smarter than the journalists who have made fun of these efforts and understand that the best way to teach this issue is as an ongoing controversy. They can find a great resource in an educational activity created by Montana State University that was selected by NASA as an "exemplary product" at http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/What_Is_a_Planet.html

As I write this, it occurs to me that today is the one-year anniversary of my radio interview on Pluto with Karl Hricko on Centenary College's WNTI "Contours" program. Interestingly, while some who deride these resolutions note that March 13 falls on a Friday the 13th, there is another, more positive association with this week and month. Tonight and tomorrow mark the Jewish festival of Purim, a carnival like holiday of feasting and merriment. In the Jewish calendar, the month in which Purim occurs, named Adar, is considered especially lucky. And in addition to both Purim and Pluto being five letter words that begin with the letter "P," both have something else in common--a lesson about the inherent goodness of diversity.

About 2,500 years ago, the story goes, an evil Persian minister sought to exterminate the Jewish people in the huge Persian empire. His justification for seeking permission to do this went something like this, according to the Book of Esther in the Bible. "There is one nation, scattered and spread out among the peoples, and their ways are different from those of all others, and they do not follow the king's rules, and so for the king, it is not worthwhile to keep them around. If it pleases the king, let it be decreed that they be destroyed..."

This sentence can be rewritten as follows: "There is one object in the solar system whose orbit takes it above and beyond the plane of the other planets, and its makeup is different from that of all the other planets, and it does not behave as a proper planet should, and so for the International Astronomical Union, it is not appropriate to continue including it. Therefore, if it pleases this Assembly, let it be stricken from the planet list..."

Along with the Jewish people of the story, Pluto shares the trait of being different, and unfortunately, some people are unable to grasp that diversity is not only favored by biology, but by the cosmos itself. That is what we are finding as we discover planets around other stars. One commenter responding to my previous entry on this blog noted that a total of three, not one, solar systems containing two giant planets in a 3:2 orbital resonance with one another, the same resonance shared by Neptune and Pluto, have so far been discovered.

How does one celebrate Pluto Day? some bloggers asked. The answer is actually quite simple. Advocate for Pluto. Email IAU president Catherine Cesarsky at catherine.cesarsky@cea,fr , email the IAU at iau@iap.fr , and cc the emails you send to CNN at headlinenews@cnn.com and to the BBC at newsonline@bbc.co.uk . Ask Cesarsky and the IAU to honor their commitment to communicate astronomy with the public, listen to the ongoing objections people are expressing to the 2006 planet definition, and reopen the planet definition issue at their General Assembly in Rio de Janeiro this August. The more people Cesarsky and the IAU hear from, the better the chances that they will consider this request.

Meanwhile, no matter what state or country you live in, Happy Pluto Day!


 

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Celebrating Pluto [Feb. 18th, 2009|02:03 pm]


Today is the 79th anniversary of the discovery of planet Pluto by 24-year-old Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona. The observatory is celebrating that milestone, "Pluto Night," tonight with presentations by astronomer and New Horizons team member Will Grundy and by Outreach Manager Kevin Schindler, who will share the exciting story of Pluto’s discovery and astronomers’ current efforts in trying to understand Pluto and its neighbors. Visitors will also have an opportunity to check out the Orion Nebula and other fascinating objects through their telescopes. More on this event can be found at http://www.lowell.edu/outreach/events.php . This is one event I deeply regret missing, but Flagstaff is a long way from New Jersey. Still, I do plan to make a visit to the Lowell Observatory one of the goals I hope to someday accomplish.

Interestingly, the anniversary of Pluto's discovery is being noted around the world by many articles, blog posts, and events, once again illustrating the compelling draw of this tiny body of which the world cannot seem to get enough.
Several weeks ago, I noted the dedication of Tombaugh's 16-inch telescope at Rancho Hidalgo in New Mexico. Pictures from the dedication ceremony can be viewed at
http://community.livejournal.com/pluto_heresy/10456.html

How notable is it that fully two and a half years after the IAU--or, rather, four percent of the IAU--thought they had settled this issue for good, that it becomes more and more evident every day that the issue is not settled. Why should it be? Why should the world settle for a sloppy definition adopted in haste by astronomers more eager to get home after a two-week conference than to deliberate sufficiently so as to arrive at a thoughtful compromise? In the March 2009 issue of Sky and Telescope, Dr. David Grinspoon argues rightly that the world should not be forced to accept a flawed planet definition. His article and an 11-minute podcast on why the planet definition issue needs revisiting can be found here:
http://www.skyandtelescope.com/skytel/beyondthepage/38235059.html

Also fascinating to me is the reference to this blog in several blog posts by various astronomers and astronomy journalists. It seems the backlash against the IAU decision is gaining momentum. On four separate occasions in just the last few weeks, this blog was discussed in relation to the Pluto debate. These references can be found at the following sites:

http://philosophyofscienceportal.blogspot.com "Pluto: A Reader's Contribution" 2/5/09
http://astroprofspage.com/archives/1898 "Defining Planets" (Part 1) 2/2/09
http://physics.about.com/b/2009/01/31/the-other-side-of-pluto.htm "The Other Side of Pluto" 1/31/09
http://tierneylab.blogs.nytimes.com/2009/01/10/how-many-planets-do-you-want-in-the-solar-s ystem/ "How Many Planets Do You Want in the Solar System?" 1/10/09

T
he Internet has provided people the world over an opportunity to make a difference, to influence this debate in a way we never could have in its absence. In the pre-Internet world, four percent of the IAU would have voted, and that would have been the end. Many people, both scientists and lay people, would still have been unhappy with the flawed decision, but we would have had limited venues with which to express our views. Supporters of the demotion, especially if they are professionals with PhDs, would get the media attention, the op-eds and the interviews, and in spite of the definition's many deficiencies, there would have been precious little the rest of us could do to fight this. Thankfully, today, we have this venue that democratizes this debate, allowing all to have an equal say in this matter and, most importantly, allowing Pluto supporters to counter the claims of those who support demotion that our views are based solely on sentiment. They are not. There is strong scientific reasoning for the continuing classification of Pluto as a planet.

Here is one of the most compelling arguments yet.  A newfound pair of exoplanets has been discovered, which has the same 3:2 orbital resonance as Neptune and Pluto. The two planets revolve around an orange dwarf star named HD 45364 in the constellation of Canis Major, about 110 light years from Earth.  The inner planet completes three orbits around its star in the same time it takes the outer planet to complete two orbits. Therefore, the inner planet at times lies further from the star than the outer planet--just like Neptune and Pluto. For 20 years of its 248-year orbit, Pluto comes closer to the sun than does Neptune. Both of these exoplanets have elliptical orbits.

Both of these are giant planets; the inner one is at least 3.5 times the mass of Neptune. Its average distance from its star is approximately that of Venus from our sun. The outer planet is more massive, at least 2.2 times the mass of Saturn. It is slightly closer to its star than the Earth is to the sun.

According to the IAU definition, neither of these objects would be considered planets, as they do not "clear their orbits" of one another. According to Dr. Neil deGrasse Tyson, crossing another planet's orbit is "no way for a planet to behave." What, then, are these giant objects? Are they really not planets, or more likely, did some astronomers hastily adopt a planet definition based on arbitrary constrictions? More about this planetary system can be found at
http://kencroswell.com/HD45364.html

Another exoplanet discovery illustrates that having an orbit that is "comet-like" does not make an object a comet. A large exoplanet, HD 80606b, four times the size of Jupiter, circles its star in only a few days in a comet-like orbit. Is this object, which is bigger than any in our solar system, not a planet but a comet because of its highly elliptical orbit?

More information on this exoplanet can be found at http://www.centauri-dreams.org/?p=5767

The conclusion is clear. Unless astronomers want to blatantly exclude these giant objects from planet status, they have to recognize that an  object not clearing its orbit, crossing the orbit of another planet, and/or having a comet-like orbit do not in fact disqualify celestial objects from consideration as planets. And it may be just a hunch, but personally, I have a feeling that we are going to see more, not fewer, strange exoplanet discoveries that only confirm the ridiculousness of the IAU's 2006 planet definition.

Another interesting tidbit that further discredits Tyson's claim that affinity for Pluto is limited to the US is that just yesterday, I received a message from an astronomy journalist in Argentina stating his support for Pluto's planet status. People around the world are speaking, and they are celebrating planet Pluto. Forget the silly 1930-2006 line that has graced some blogs and T-shirts. It's 2009, and planet Pluto has not gone anywhere. The debate will not end with a nonsensical definition best described in Jonathan Coulton's song, "I'm Your Moon," as "they invented a reason."

For those further interested in Pluto's fate, Dr. Alan Stern will be at the American Museum of Natural History in New York on Tuesday, March 10 at 7:30 PM for the 2009 Isaac Asimov Memorial Debate, which will focus on Pluto. Dr. Tyson will act as moderator. Tickets are $18 and should be purchased in advance. More information can be found at
http://www.amnh.org/programs/programs.php?event_type_id=3&bytype=1 . I hope to be there and to meet other Pluto supporters there.

On the next night, Wednesday, March 11, NASA Solar System Ambassador Dr. Ken Kremer, a friend of mine, will discuss Pluto and the New Horizons Mission at the Rittenhouse Astronomical Society at the Franklin Institute Science Museum in Philadelphia from 8-9:30 PM. He will join Dr. Max Mutchler of the Space Telescope Science Institute, who discovered Pluto's two tiny moons Nix and Hydra.  Mutchler will begin the evening program at 7:30 PM. More information can be found at
http://www.rittenhouseastronomicalsociety.org/

Meanwhile, all the discussion resulting from Tyson's book has inspired me with the goal of writing a book about Pluto as well, one that will address both the scientific issues surrounding the debate and the cultural aspect of Pluto and worldwide support for its planet status--all from the viewpoint of an unabashed Plutophile. This project is still in the research state, so it's going to be a while before it becomes reality. However, I'm pretty sure the Pluto debate will continue for quite some time, creating a fertile climate for books and articles on this subject. I agree with Tyson, who responded to my project with "the more, the merrier." Of course, I better get it done well before 2015, or New Horizons data will make most of the information obsolete!

Happy Discovery Day, Pluto (not birthday, as Pluto was here long before we found it!)! This year, your planetary status is still a matter of debate. Next year, may it be a fact officially recognized worldwide.
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Reading Tyson's "Pluto Files" [Feb. 8th, 2009|02:20 am]
Was I too hard on Dr. Neil deGrasse Tyson in my initial post about The Pluto Files? Several readers thought so and sent me emails with that message. That post was not intended to be a review of the book but a commentary on Tyson’s public statements in various discussions of the planet definition issue.

I do thank Tyson for directing his publisher to send me a copy of the book, which I received last Saturday and read immediately. Going out of his way to make sure that someone who has publicly criticized him gets a chance to read, review, and keep his book is commendatory.

Contrary to some who communicated with me, I do not have any personal animosity toward Tyson. His endearing way of making astronomy accessible to the public is certainly a positive for him.

However, I do see some very real problems, including contradictions, in his public statements about Pluto. As for the seeking of “celebrity” status, I am in principle opposed to the concept of “celebrities” and don’t believe anyone should be paid thousands of dollars for a lecture or “personal appearance.”

And I wish Tyson had stayed for the entirety of the Great Planet Debate in August rather than just attend for his debate with Dr. Mark Sykes. The best of that conference, the rich exchange of ideas, took place mostly in the other, more participatory sessions throughout the two-and-a-half days.

But back to Pluto. My initial use of the word “preposterous” in the earlier entry was specifically aimed at the subtitle “The Rise and Fall of America’s Favorite Planet.” Pluto has not “fallen” from grace. This saga is far from over. Pluto has had its ups and downs, its detractors and supporters, since 1931, one year after its discovery. An assumption that the debate is over, inherent in the title, is unwarranted and in my view, preposterous.

Tyson’s book is a fun, entertaining read, and its pages contain many cartoons and illustrations. It is clearly accessible to children and adults alike. He even cites two songs I referred to in an earlier entry, “Planet X” by Christine Lavin and “I’m Your Moon” by Jonathan Coulton. I like that.

Defining “Planet”:

In an email to me, Tyson emphasizes his conviction that we are not on opposite sides of the planet debate, saying he does not care what the definition of planet is. He notes that he would have no problem with the term planet being defined as anything that is round but then opines that such a classification is not useful pedagogically or scientifically because it would leave us with dozens of planets.

I find those two statements contradictory. The latter sentence indicates he does in fact have a problem with using roundness as the criterion for planethood. Why would having dozens of planets not be “useful” education wise? We have billions of stars and billions of galaxies. Among objects known as stars and those known as galaxies, there are huge variations, which are designated by subcategories. Would it make sense to say the sheer number “devalues” the terms “star” and “galaxy,” and thereby makes these concepts unteachable? The answer is clearly no. Why then, should we have a different standard for planets?

And that is the beginning of where, in spite of recognizing the fun and entertaining tone of Tyson’s book, I disagree with his conclusions.

If Tyson really does not care what the definition of planet is, why then does he proceed to argue against using the criterion of hydrostatic equilibrium--roundness--by saying its resulting in numerous planets makes it not useful? Also, while he rightfully acknowledges the IAU planet definition as flawed, he then muddies the waters by invoking that vote to vindicate his decision to not include Pluto as a planet in the Rose Center display. Which one is it? Either the IAU definition is a step forward or it is not. If he believes it is not, then he should not be citing it to support his choice in designing the planetarium.

On page 132, Tyson states that the IAU “added the word ‘dwarf’ the way astrophysicists have used it for dwarf galaxy (which is still a galaxy) and for dwarf star (which is still a star). But to no avail. As far as anyone was concerned, the IAU killed planet Pluto.”

It seems he has forgotten about resolution 5b--the umbrella resolution that, had it passed, would have made dwarf planets a subclass of planets. Unfortunately, the IAU members participating voted that measure down, meaning they specifically intended to depart from traditional usage by adopting a definition that intentionally said a dwarf planet is not a planet at all.

If the whole “the IAU killed planet Pluto” was just media hype, why then does Tyson title many of his lectures, “How I Killed Pluto, and Why It Had It Coming?” Which one is it?

And, if he truly believes the IAU decision is flawed, why does he then proceed to argue that that vote is representative of planetary scientists around the world--a point widely contested since only four percent of the IAU’s membership voted on this and most are not planetary scientists. Why does he then go on to criticize the petition of scientists who rejected the IAU decision and point out how many signatories were American versus non-American? If he doesn’t care how planet is defined, he should have distanced himself from all sides of the 2006 dispute.

Voting is not the way science is done. If it were, a group of prominent PhDs could vote that the sky is green. Would that make their statement true? Did scientists vote on the theory of relativity? Dr. Alan Stern rightly points out that in science, ideas rise and fall on their own merit. That is a process that takes time. It does not provide instant gratification. It does not give a neat, clean, “planet or not planet” answer in time for
the next newspaper or textbook deadline.

Maybe we need to take the time to study Pluto, the Kuiper Belt, and extrasolar planets in depth before reaching a definitive conclusion. Contrary to the claims of some, children can be taught that sometimes, we just do not have enough information to make a final determination. And even determinations deemed to be final can be later reconsidered.

The point of the petition was to show that within days, hundreds of experts rejected the IAU decision. The only reason the petition had so many American signatories is that most planetary scientists are American.

It’s Not A Comet:

Pluto is a Kuiper Belt Object, but Tyson is incorrect in describing it as a “large comet” and as just another member of the Kuiper Belt. He believes it is a choice to use hydrostatic equilibrium, which is expressed in roundness, as the fundamental criterion in planet definition. This is where his argument falls apart.

Ask anyone to draw his or her conception of a planet. Inevitably, everyone will draw an object that is round. Roundness is universally accepted as the way planets appear. For an object to be in hydrostatic equilibrium, it must be sufficiently massive so that its shape is controlled by gravity rather than by chemical bonds. Pluto clearly meets this criterion, as do Ceres, Haumea, Makemake, Eris, various other objects in the Kuiper Belt, and probably the “asteroids” Vesta, Pallas, and Hygeia. These objects behave like the larger objects in the solar system--the planets--and not like the tiny asteroids and majority of Kuiper Belt Objects.

Planetary scientists measure objects by mass, not volume. Pluto’s mass is 70 percent rock and 30 percent ice. Most of the rock is in the planet’s center and has less volume than the ice. Tyson departs from the convention used by planetary scientists and decides to use volume as an object’s primary characteristic instead. He states, “If volume is what matters to you, then you can rightly declare that Pluto is mostly ice. This fact sits within a long list of properties that are not shared with any other planet in the solar system” (page 33).

So in order to lump Pluto with comets and shapeless KBOs, Tyson must resort to using a different measure than that used as the standard in the field.

And even if by his definition Pluto “is mostly ice,” well, Uranus and Neptune have several Earth masses of ice within them. Are they then not planets?

The reality is that volume has nothing to do with whether or not an object is a planet.

As for his claim that if brought into the Earth’s orbit, Pluto would grow a tail, this is true. But it is also true that any planet brought close enough to its parent star would grow a tail due to the evaporation of its atmosphere. In fact, Earth in its current orbit has a magnetotail. If Earth were brought 30 times closer to the sun than its current orbit--the equivalent of placing Pluto in Earth’s orbit--it too would grow a tail. Some of the “hot Jupiters” found orbiting other stars have visible tails. Many are several times the size and mass of Jupiter. Are they comets rather than planets?

Tyson also argues that Pluto is a big comet because its eccentric orbit matches that of other comets and Kuiper Belt Objects. But Earth’s orbital parameters match those of about a million near Earth asteroids. Is Earth therefore an asteroid?

The answer to all these questions is no because celestial objects are classified by their intrinsic attributes, not by what orbits with them. Otherwise, we’re back to the same preposterous definition created by the IAU in which the exact same object is a planet in one location and not a planet in another.

If Earth were placed in Pluto’s orbit, it would not have enough mass to clear that orbit. This was definitively proven in calculations by Dr. Hal Levison, who interestingly is a dynamicist and therefore a supporter of the eight planet schematic.

Maybe the reality is that it was easier to lay out the Rose Center display into neat categories of terrestrial planets, asteroid belt, gas giants, and Kuiper Belt. After all, it would be a lot more complicated and probably cost more money to name and highlight a few round objects in the asteroid belt and another group, including Pluto, in the Kuiper Belt. Unfortunately for planetarium designers, the solar system is not so neatly arranged, messier than a simple display of four clear categories.

Why Do We Love Pluto?

A final area where I believe Tyson is wrong is his attribution of public affinity for Pluto to the Disney dog. Maybe this is because, as stated in the book’s acknowledgments section, his brother-in-law is a Disney expert. “I could find none,” he says in attempting to find a reason that explains Pluto’s continuing popularity.

Just because he cannot identify a reason doesn’t mean there isn’t one--or many. Most children and adults fascinated by Pluto already have some interest in astronomy and the solar system. When I pointed this out in an email, Tyson stressed that he is referring to the public rather than professionals in the field.

So am I. The public has always had some degree of fascination with the space program, with the discovery of “strange new worlds.” Of the solar system’s known planets, Pluto is one of the least understood. We have never seen images of it up close. We have no other binary planet systems, which Pluto and Charon essentially are. Therefore, Pluto is enigmatic, mysterious, the frontier of our knowledge, at least about our solar system.

That is appealing in the same way that Mars is appealing in that it is both known and unknown, Earth-like, yet different. More science fiction stories have been written about Mars than about any other planet. It is the same reason so many children--and adults--become fascinated with dinosaurs. There is that element of mystery, of something both like and unlike what we know, something remote, either in time or in space.

And yes, there is the appeal of the underdog. Pluto was discovered not by a professional astronomer, but by a Kansas farm boy who at the time had only a high school education. Inherent in that story is an anti-elitism, a conviction that anyone, regardless of the circumstances of his or her birth, can accomplish great things. Notably, Clyde Tombaugh himself was an underdog even once he obtained a formal post-secondary education. Not having a PhD, he was often looked down on by his peers in the field. Perhaps they resented the fact that someone with less formal training than they had had done something they did not--discover a planet.

The IAU decision very likely caused Pluto’s popularity to skyrocket worldwide. Like it or not, we all, scientists included, project our own sentiments onto the world around us. By demoting Pluto and singling it out for exclusion, the IAU effectively made it the Charlie Brown of the solar system. Who has not, at one time or another, identified with that?

As further illustration of Tyson’s generalizing, he comments on page 121 regarding the 2006 IAU decision, “Angry third graders from the year 2000 were now in high school with other (hormonal) priorities to distract them.” Personally, I was somewhat taken aback by his assumption that all the students who had cared enough to write letters in 2000 were now distracted by “hormonal priorities.” How does he know? Not every teenager is all hormones all the time. In fact, some may have maintained their interest in astronomy. How does he know they were not upset by the IAU decision? Their letters at this point would likely be typed on a computer, written in the same language as those of adults, and not include their age or grade. As with the attribution of people’s love for Pluto to the Disney dog, Tyson’s wholesale categorization of high schoolers as walking hormones is a gross generalization, not to mention it is demeaning to teenagers.

Tyson is certainly a highly credentialed astrophysicist, not to mention charming and entertaining. His book most certainly adds to the growing lexicon of literature on Pluto and the planet debate. I would never in any way begrudge him this. His chronicling of popular celebration of Pluto is itself an example of our ongoing fascination with this little world.

But that world has not fallen. It is not dead. The story continues. I believe planet Pluto will rise again, and I still hold out the hope that it will be in 2009.



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Tombaugh Telescope Official Dedication [Jan. 28th, 2009|02:22 pm]


Today in Animas, New Mexico, at the Rancho Hidalgo housing development, the 16-inch telescope used by Pluto discoverer Clyde Tombaugh in his later years will be officially dedicated at its new home, where it will serve as a centerpiece in a new educational program.

Members of the Tombaugh family and Tombaugh biographer David Levy, one of the discoverers of Comet Shoemaker-Levy 9, which hit Jupiter in 1994, will be present for the dedication.

As an interesting note, in his later years, Tombaugh was aware of the controversy surrounding Pluto's status. Levy reportedly promised Tombaugh that he would always be a voice for Pluto's planethood, even after Tombaugh was gone.

The 16-inch telescope at Rancho Hidalgo has been refurbished and updated for frequent use. Gene Turner, one of the developers of this community, emphasizes that there are many people eager to look through Tombaugh's telescope. Personally, he has set himself a goal of viewing Pluto and Charon through the telescope as two separate objects, a feat rarely accomplished by amateur astronomers. Charon is half the size of Pluto and very close to the planet, which is why for so long, astronomers believed Pluto was far larger than it really is.  Until the discovery of Charon by James Christie in 1978, nobody realized that they were actually looking at not one but two separate objects in very close proximity to one another.

The owners of Rancho Hidalgo also own the Arizona Sky Village, another housing development geared specifically to skywatchers and therefore also a dark sky site (something that those of us here in light polluted New Jersey can very much appreciate!).

At Rancho Hidalgo, Pluto is a planet, says Turner, who plans to put a provision stating so in the development's official documents.

More information on Rancho Hidalgo and the Tombaugh telescope can be found at http://www.hidalgonm.com/ranchohidalgo_025.htm

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Who are the "Plutophiles?" [Jan. 21st, 2009|11:48 pm]


After reading Time magazine's interview with Neil de Grasse Tyson, I would like to comment on a statement Tyson makes regarding "Plutophiles," a term he uses for supporters of Pluto's planet status. Tyson is wrong when he says "Plutophiles" are only Americans. I have heard from and read writings by people from all over the world who want to see Pluto reinstated as a bona fide planet, not a dwarf, people from Australia, England, Canada, New Zealand, Egypt, the Philippines, Morocco, India, Pakistan, and many other locations.

But one does not have to take my word for it. There are Internet groups and web sites all over the world organized by people who want to see Pluto reinstated as well as see dwarf planets categorized as a subclass of planets. There are astronomers worldwide, some of whom are IAU members, others who are not, who reject the IAU demotion of Pluto. Some of them were at the Great Planet Debate.  One can see names from around the world in Dr. Stern's petition of 300 professional astronomers who rejected the IAU decision, which can be found here: http://www.ipetitions.com/petition/planetprotest/

Tyson also overly emphasizes the connection with the Disney dog, to which he attributes much of the public's fascination with Pluto. This is quite a supposition and assumes he knows the motivation of people who want to see Pluto's planet status reinstated. What he does not take into account is that many "Plutophiles" are amateur astronomers and astronomy enthusiasts (both adults and children) whose interest in Pluto the planet is completely independent of Disney. Of the many adults and children with whom I have corresponded or whom I have met, none even mentioned Disney in connection with their convictions about Pluto.

I tried to email Gilbert Cruz, writer of the interview, but all four attempts resulted in a bouncing email address. If anyone has contact information for him at Time magazine, please share it with me.

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The Preposterously-Titled PR-Driven "Pluto Files" [Jan. 19th, 2009|03:27 pm]

We are two weeks into the International Year of Astronomy, and already there have been fascinating new developments in the field, including the imaging of exoplanets’ atmospheres; the presence of methane on Mars, indicating it is not a “dead planet”; new information revealing that our Milky Way galaxy is far bigger than previously thought, and much more.

 

Significantly, today is the third anniversary of the launch of New Horizons, which is now six and a half years from reaching Pluto.

 

However, one Pluto-related news item this month turns out to be driven far more by the desire for press and public relations than by the quest for knowledge. Specifically, I am referring to the latest book by Dr. Neil deGrasse Tyson, director of the Hayden Planetarium, titled The Pluto Files: The Rise and Fall of America’s Favorite Planet.

 

Rise and fall? To paraphrase Mark Twain, rumors of Pluto’s “death” have been greatly exaggerated.

 

Pluto is about as “dead” as a soap opera character who is presumably killed under mysterious circumstances, yet there is no body to prove the person is truly dead. Of course, everyone already knows the character mourned by others on the show will inevitably return in a few years when the actor renews his or her contract.

 

Tyson, whose presentation at the Great Planet Debate involved far more show than substance, appropriated the “Pluto is not a planet” stand about eight years ago when the Hayden’s Rose Center for Earth and Space re-opened in 2001, gaining him notoriety for his exclusion of Pluto from the planet display.

 

Since then, Tyson has used his stand on Pluto to catapult him to celebrity status, conducting tours, lectures, and TV interviews around the country proudly bragging about the hate mail he received from third graders when his exclusion of Pluto from the Rose Center became public knowledge.

 

Tyson is not a planetary scientist. In fact, he is not a research scientist at all. His interviews are characterized largely by sound bytes, theatrics, and wild statements such as “Pluto is happier with its Kuiper Belt brethren than as a planet.” I guess he has a direct line to Pluto since he comments with such certainty about how the planet “feels.”

 

In his presentations, Tyson frequently comments on Pluto having an elliptical orbit, claiming “that is no way for a planet to behave,” arguing that such an orbit is more typical of comets. Does he ever consider that maybe planets have a much wider range of behavior styles than he or anyone else has previously thought? Many of the giant exoplanets we have found, most of which are significantly larger than Jupiter, have very elliptical orbits. Does that make them comets instead of planets?

 

Tyson also likes to argue that if it were placed closer to the sun, Pluto would grow a tail like a comet. That is true, but it is only half the story. Any planet brought close enough to the sun (or to its parent star), including Earth and even Jupiter, would grow a tail due to sublimation and outgassing. Of course, Tyson won’t tell that second point to his audiences.

 

He also loves to portray “Plutophiles” as ignorant of the fact that there are moons in our solar system larger than Pluto. “How many of you know that?” he questions Pluto supporters in his audience, with the assumption they do not know.

 

Those who have spent any time studying the solar system are aware of this. However, many of us recognize that the round moons of planets are planets themselves in every way—they are in hydrostatic equilibrium and geologically differentiated, just as the primary planets are. Tyson’s claim that no one has proposed calling them planets is false. Nineteenth-century textbooks referred to them as “secondary planets”; this takes dynamics into account by still defining them as planets but as ones with a secondary orbit around the sun and a primary orbit around another planet.

 

Referring to these moons as secondary planets immediately does away with the size-based argument used against Pluto.

 

At the Great Planet Debate, Tyson proposed doing away with the term “planet” altogether and adopting a wholly new classification system where objects are grouped with other like objects. However, he never presented a comprehensive alternative schematic other than to articulate two groups of objects, the terrestrial planets and the gas giants.

 

If we are to group objects with those like one another, Pluto cannot be grouped solely with other Kuiper Belt Objects just as Ceres cannot be grouped solely with other bodies in the asteroid belt. To do this is to ignore the fundamental characteristic of hydrostatic equilibrium, that is, of being spherical and therefore geologically differentiated.

 

Tyson never explains why he is okay with glossing over this crucial difference between planets and asteroids. This is a major weakness in his arguments.

 

Supporters of Pluto’s demotion often discuss how even as children, they viewed Pluto as not fitting into either of the two categories of planets, the terrestrial planets and the gas giants. Quoting Sesame Street, they argue, “one of these things is not like the others.”

 

But what if there are more than two classes of planets? What if there is a third class, the ice dwarfs, which may lie among a belt of objects but have compositions that significantly distinguish them from most of the other objects in those belts? Isn’t it a disservice to not even consider this possibility?

 

Personally, I question Tyson’s motivation in his “demote Pluto” quest. A look at his web site shows a list of public appearances and TV interviews across the country. One can be reasonably certain that Tyson will repeat the same lines, practically verbatim, in each one of these presentations.

 

Those who buy his book or attend his lectures deserve to know that he is being paid well to do the lecture circuit and be the astrophysicist version of a celebrity. There is nothing illegal about this; however, it cannot help but lead many to question how much of this is about Tyson’s celebrity status. Much of his latest book is about himself. Has he been attaining money and fame at Pluto’s expense? Clearly, he benefits personally from this public stand. Could that be at least part of his motivation in being so adamant about categorizing Pluto as a non-planet? The public has a right to know.

 

Meanwhile, in spite of Tyson’s theatrics, there is a significant backlash underway to get Pluto’s demotion overturned, possibly even at this year’s IAU General Assembly this summer. The January 3, 2009 issue of The Independent article “Planetary Storm Over Status of Pluto,” which can be found here, http://www.independent.co.uk/news/science/planetary-storm-over-status-of-pluto-1222862.html describes efforts underway to get Pluto’s planet status reinstated.

 

New York Times science writer Ken Chang, in “How Many Planets Do You Want in the Solar System?” which can be found at http://tierneylab.blogs.nytimes.com/2009/01/10/how-many-planets-do-you-want-in-the-solar-system/ , published on January 10, 2009, makes clear that Pluto’s status is still very much part of an ongoing debate and notes that he has not met anyone for whom the IAU definition clarifies this issue. I will note that I have a personal appreciation for Chang, who actually quoted me in the text of his article!

Yet a commenter who identifies himself only as “Wayne,” makes what I believe is the most important point in this debate when he points out that we are arguing over something subjective rather than objective. He says:

“It astonishes me that people talk about this as a matter of scientific inquiry, like the discovery of a new species or new information about the atom. This is nothing more than a matter of subjective definition that has no right or wrong to it. Some people say “I choose to define ‘planet” as such-and-such,” while others say “I choose to define ‘planet’ as so-and-so.” Nobody can say that Pluto is or is not a planet in the same sense that s/he can say that the Earth does or does not revolve around the Sun (emphasis mine). Opinions on this sort of question are just as subjective as whether or not Citizen Kane was a great movie (not). That doesn’t mean we can’t argue about it, but we should let go of the idea that we are pronouncing something of scientific objectivity when we make up our mind about our own opinion on the matter.”

Far from having “fallen,” Pluto continues to inspire children and adults, as can be seen from a new 13-minute film titled “Naming Pluto.” Produced by Father Films, it documents the naming of Pluto by British schoolgirl Venetia Burney in 1930 as well as her first view of Pluto through a telescope on her 89th birthday. Information on the film and how to order it can be found here: http://www.fatherfilms.com/films/namingpluto/

In the words of Tim Ophus and Chuck Crouse, who respectively wrote the music and lyrics to “Dwarf Planet Nothing (The Pluto Song),” which can be found here, http://www.youtube.com/watch?v=jlkYe6i3Dns&feature=PlayList&p=C928956660965F3A&index=1&playnext=2&playnext_from=PL

"Pluto’s going to rise once again!!!"

May it be in 2009.

 

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"Yes, Earth Residents, There Is A Planet Pluto" [Dec. 18th, 2008|08:39 pm]

Some supporters of Pluto's demotion have begun to express dismay that people won't just "get over it" and accept the IAU's decree. In an April 2008 post on Universe Today, Fraser Cain bemoans, "This has got to be be one of the most heartbreaking questions I get asked, "Why Isn't Pluto a Planet". And I get it a lot. I was expecting that a few years after the International Astronomical Union's controversial decision, the debate would have settled down and people would finally accept it. But no, it's still a sore point for many people."
Source: http://www.universetoday.com/2008/04/10/why-pluto-is-no-longer-a-planet/

While I respect Cain as a knowledgeable and competent astronomer, I also find it interesting that he was for Pluto being a planet before he was against it. In a February 22, 2006 comment on Universe Today, he says, "If the decision were up to me, I'd say Pluto's a planet. For starters we wouldn't have to go back and edit all those astronomy textbooks, websites, sculptures, museum exhibits and PBS documentaries. Our Solar System just isn't so simple; objects scale from the tiny to the huge, with all sizes in between. Any decision on Pluto's planethood will be an arbitrary one, and the arbitrary decision I like is… Pluto's a planet. "
Source: http://www.universetoday.com/2006/02/22/so-is-pluto-a-planet-or-not/

Cain is apparently following in the footsteps of Mike Brown, who also supported planet status for dwarf planets before changing his mind.

The fact that among supporters of Pluto's demotion are astronomers who only recently opposed it has to raise questions. What made these people change their minds? The authoritarian decree of four percent of a body that purports to be the arbiter of what is real in astronomy? That seems a lot more like obeying a new religious dictate from on high than something that independent thinking academic types would do.

My grandmother sometimes says that if one or two people make a claim about you, you could dismiss it, as it may or may not be true. However, if one after another person steps up and tells you something even though it may be uncomfortable, then it's time to consider there may at least be some truth in the claim.

Around the world, people are not blindly accepting heartbreak and loss over Pluto because inherently so many of us know the demotion is just plain wrong. It's not just an emotional attachment to Pluto. The IAU seems to have underestimated the intelligence of the world's population in assuming they would unquestioningly agree to nonsensical statements such as "dwarf planets are not planets" or ridiculous notions that ignore what an object is and define it solely by where it is.

People of all ages and backgrounds are smarter than that. That's why the opposition to the demotion isn't going away. And it's not just among Americans, as some like to claim. Yes, this is anecdotal, but I have heard from people in the Philippines, Canada, England, Egypt, Morocco, Australia, New Zealand, and many other parts of the world the same strong convictions supporting Pluto's planet status and its official reinstatement.

In a Science News article dated November 21, 2008, titled "Debates Over Definition of Planet Continue and Inspire," Dr. Alan Stern addresses just why this issue remains an ongoing debate. Stern presents a compelling case of the recent "revolution" in planetary science with new discoveries taking us from a universe with nine familiar objects we called planets to one with a hundreds of planets known to orbit other stars as well as a new neighborhood in our own solar system made up of a host of small planets akin to Pluto (although as of now, only one of these objects, Eris, is known to be more massive than Pluto).

Stern's discussion of this expansion within planetary science can be found at http://www.sciencenews.org/index/generic/activity/view/id/38770/title/Debates_over_definition_of_planet_continue_and_inspire
It is a very worthwhile read that describes why the IAU's decision has not been widely accepted.

From the standpoint of popular culture, efforts to engage children--and adults--in the effort to overturn Pluto's demotion continue, as in this Youtube broadcast from Little Big Planet's Sackboy here: http://www.littlebigland.com/little-big-planet-news/sackboys-save-pluto-video/
Some may dismiss this as a marketing tool, but such a tool would not attract customers if there weren't already strong convictions by children and adults alike in favor of Pluto's planethood.

As for my personal experience, a presentation I and fellow Amateur Astronomers, Inc. member Mike Luciuk conducted on the topic of "Is Pluto A Planet" drew a full house at Sperry Observatory in Cranford, NJ on a rainy November night, meaning everyone of the enthusiastic crowd who showed up did so purely out of interest in this subject. Luciuk and I referred to a 2000 article by Stern and Hal Levison titled "Regarding the Criteria for Planethood and the Proposed Classification Scheme," which proposes two categories of planets, those gravitationally dominant--the "uber planets" and those not gravitationally dominant--the "unter planets." The authors here recognize two classes of objects but never claim that the smaller class, or "unter planets" are not planets at all.

Anyone interested can read articles by Mike Luciuk and me in the October issue of "The Asterism," the monthly newsletter of Amateur Astronomers, Inc., here: http://www.asterism.org/newsletter/2008-10.pdf

I would also like to address the argument that this debate has gone on too long. The passage of time alone does not determine whether or not a principle is correct. Anyone who has taken part in or even observed the proceedings of local government knows that when land use applications come before Planning or Zoning Boards, no one proposes to vote just because it is 11 PM and time for the meeting to end.

If more information needs to be presented, hearings are continued from one month to the next. Sometimes, with a big project, the hearings go on for over a year. This is as it should be. Choosing an arbitrary cut off time to summarily end debate without considering additional data, which is what the IAU did in Prague, would never even be considered for a local building application.

There is a lot of data on Pluto and the Kuiper Belt that we do not yet have. We know we will have it with New Horizons' findings in 2015. Why rush to judgment when we know that most of the facts are not yet in?

We're only two weeks from the first day of 2009, the International Year of Astronomy (IYA), and also the year of the next IAU General Assembly. The International Year of Astronomy is a tremendous, very worthwhile initiative to engage the public in astronomy worldwide, especially to reach out to disadvantaged populations and countries. It is being organized to commemorate the most significant watershed moment in astronomy's history, the first telescopic observations of the sky and celestial objects by Galileo 400 years ago. More information on IYA and how to get involved can be found at http://www.astronomy2009.org/ . The US node for IYA can be found at http://astronomy2009.us/

I am working on promoting IYA events here in New Jersey, where we do not yet have a group coordinating the project. As such, I would love to hear from any individuals or groups interested in organizing IYA events in New Jersey.

The theme of IYA is "The Universe: Yours to Discover." Initiated by the IAU, this global effort is in many ways the polar opposite of the events that took place at the Prague General Assembly in 2006. Why? Because the IAU is inviting citizens of the world to actively take part in discovering the universe instead of dictating by fiat what the "reality" of the universe is.

As for Pluto, the people have spoken--not unanimously, but clearly. The same people whom the IAU seeks to enchant with its 2009 yearlong activities have "discovered" the facts for themselves and have determined that Pluto and dwarf planets are in fact a subclass of planets. The IAU cannot fail to acknowledge this without being rightfully accused of being out of touch with public sentiment.

For me, what was a marginal interest in astronomy has become so much more, and it started with the Pluto debate. Sometimes, what we in the newspaper business call a "hook" is all that is needed to engage people. In the space of two years, I have observed planets, stars, nebulae, open clusters, and galaxies; I've completed the Swinburne Astronomy Online short course "From Planets to the Universe," which I highly recommend, and have discovered the magnificence of the universe for myself.

The weekly newspaper for which I write has committed to a yearlong focus on the International Year of Astonomy by covering astronomy related programs and events here in central New Jersey, a commitment for which I am extremely proud.

Experiences like the ones I have had is what IYA strives to bring to people of all ages all over the world. To successfully accomplish this,
the IAU must acknowledge, recognize, and respect public sentiment on astronomical issues. The Pluto case is a classic one, as it involves not just sentiment but sound science as well.

In this holiday season, regardless of what--if anything--one celebrates, my personal message to the world is, "yes, Earth residents, including IAU members, there is a planet Pluto." It's time to acknowledge this and reverse the decision of August 2006. It's the right thing to do, and it just might motivate who knows how many people to discover not just one planet, but an entire universe.

Happy New Year!

 

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