| More Plutonian Controversy |
[Aug. 22nd, 2006|09:03 am] |
As the IAU General Assembly gets closer to taking a vote on the definition of the word "planet," things have gotten even more interesting.
New Scientist reports in "Planet definition to draw from rival proposals" that the second proposal, the one not proposed by the official Planet Definition Committee, is receiving a lot of support. So instead of having a head-to-head vote, the definitions will be broken down into their components, and each component will be voted upon separately.
In the New York Times, Dennis Overbye's essay Planets Askew in the Heavens shows a certain nostalgia for Pluto. And he quotes David Strum's new possible mnemonic for remembering all 12 planets, should it come to that: My Very Excellent Mother Could Just Serve Us Nuts, Pizza, Carrots 'n' Xylophones!
Overbye also notes a problem that others have mentioned: the word "pluton" for a Pluto-like object doesn't work, since in geology a pluton is a chunk of molten rock that solidifies underground and then emerges onto the surface of a planet. Looks like we may have to go with "plutoid" or "plutonoid" instead.
We here at SP3 predict that in the end, nothing will be resolved this time around. We predict we'll have to wait for the next IAU General Assembly for a final decision on what is and what isn't a planet. |
|
|
| And the Pluto Debate Is Getting Fierce... |
[Aug. 22nd, 2006|03:01 pm] |
Things are getting heated over at the IAU General Assembly...
From Battle of the planet definitions heats up (New Scientist Space):
Of the hundreds of astronomers present, however, a majority opposed the new resolutions, which just like the original definition would admit many new bodies to the rank of planet. If the straw poll taken at the meeting reflects the real voting on Thursday, the resolutions will we thrown out, and there will be no definition at all....
Later, when more questions were prevented, there was a cry of: "If there is democracy, listen to the questions. Let the people speak!" And feathers were further ruffled when planet committee member Richard Binzel of MIT told the delegates: "You can vote based on physics, or maybe you have some preconceived idea of what a planet should be."
|
|
|
| Smoke-Filled Rooms |
[Aug. 22nd, 2006|10:08 pm] |
It used to be that only Chicago politicians made deals in the smoke-filled back rooms of their conventions.
To that list, we can now add astronomers.
According to the latest report on New Scientist Space, Astronomers lean toward eight planets, astronomers held a meeting "behind closed doors" in Prague on Tuesday and came up with a new draft resolution that demotes Pluto from its longtime status as a planet:
The crucial change in "draft c" is that a planet must be the dominant body in its orbital zone, clearing out any little neighbours. Pluto does not qualify because its orbit crosses that of the vastly larger Neptune....
It is still a work in progress, however, and the wording will change by Thursday in part to simplify it and make the final result more palatable to the public.
However, we shall not despair. Pluto may get to be called a "dwarf planet" or a "planetoid," meaning it will still have the word "planet" in its classification.
In other news, it appears that the Society for the Preservation of Pluto as a Planet now has a sworn enemy! Check out Demote Pluto! for an enjoyable read and a good laugh, but do NOT be swayed by the dark side of the gravitational force! |
|
|
|
|