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What Is a Planet? |
| Guest_AlexBlackwell_* |
 Dec 18 2006, 11:50 PM
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#1
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There is an interesting article in the January 2007 issue of Scientific American entitled "What Is a Planet?" by Steven Soter.
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Feb 27 2007, 02:56 AM
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#2
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 Senior Member  Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
How about this:
Any body that's half the size of Earth's Moon or larger, and that orbits directly around the Sun and not around another body, is a planet. Smaller non-satellite bodies in the inner system are asteroids. Smaller non-satellite bodies outside of the inner system are iceteroids. Think we could get that past the IAU?  -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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AlexBlackwell What Is a Planet? Dec 18 2006, 11:50 PM
JRehling QUOTE (AlexBlackwell @ Dec 18 2006, 03:50... Dec 19 2006, 04:38 PM
MarsIsImportant QUOTE (JRehling @ Dec 19 2006, 10:38 AM) ... Jan 5 2007, 01:18 PM JRehling QUOTE (MarsIsImportant @ Jan 5 2007, 05:1... Feb 26 2007, 03:27 PM Mongo This book might be of interest to those who want t... Feb 25 2007, 10:38 PM dvandorn I just want to point something out about the whole... Feb 26 2007, 04:27 AM Greg Hullender Perhaps. Personally I like the idea that scientis... Feb 27 2007, 12:05 AM laurele QUOTE (Greg Hullender @ Feb 26 2007, 07:0... Feb 27 2007, 01:27 AM JRehling QUOTE (Greg Hullender @ Feb 26 2007, 04:0... Feb 27 2007, 10:32 PM mchan Ok, iceteroids are made out of ice, asteroids are ... Feb 27 2007, 06:21 AM hendric Steroids are made from stereos? Feb 27 2007, 09:01 PM Mongo And Polaroids are found in the Polar regions. Feb 27 2007, 09:07 PM ddeerrff Olive oil is made by squeezing olives;
Peanut oil ... Feb 27 2007, 09:20 PM dvandorn And, of course, from the bodies known as hemerhs, ... Feb 27 2007, 10:11 PM djellison My objection has nothing to do with what is and is... Feb 28 2007, 12:27 AM Pavel Well, that could be spun into an April Fool joke. ... Feb 28 2007, 07:38 AM David I want to argue strenuously for a definition that ... Feb 28 2007, 06:09 PM JRehling QUOTE (David @ Feb 28 2007, 10:09 AM) I w... Mar 1 2007, 06:27 PM Mongo Okay, I would like to step back from this debate a... Mar 4 2007, 12:50 AM nprev Argh...
I'm about ready to junk the term ... Mar 4 2007, 01:03 AM dvandorn I don't think you'll ever get rid of the t... Mar 4 2007, 02:10 AM |
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