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      <title>Making Light :: Gather in the Hall of the Planets :: comments</title>
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      <title>Gather in the Hall of the Planets</title>
      <description>The Middle East? Warrantless wiretapping? Lamont versus Lieberman? No, the important controversy roiling today's blogosphere is the question: Is Pluto...</description>
      <content:encoded>The Middle East? Warrantless wiretapping? Lamont versus Lieberman? No, the important controversy roiling today's blogosphere is the question: Is Pluto...</content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #1 from Niall McAuley</title>
         <description>comment from Niall McAuley on 16.Aug.06</description>
         <content:encoded><p>So the Great Old Ones are not-dead on Pluto?</p>

<p>Pretty scary.</p>

<p>Still not a planet! <i>[runs]</i></p>
	 <p>Posted August 16, 2006  9:04 AM by Niall McAuley</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 09:04:18 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #2 from theophylact</title>
         <description>comment from theophylact on 16.Aug.06</description>
         <content:encoded><p>If Charon is a planet, why not the Moon? And if the Moon, why not Titan?</p>
	 <p>Posted August 16, 2006  9:06 AM by theophylact</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 09:06:20 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #3 from Neil_in_Chicago</title>
         <description>comment from Neil_in_Chicago on 16.Aug.06</description>
         <content:encoded><p>Um, no.</p>

<p>There <b>is</b> no right answer to a wrong question.</p>

<p>Our understanding of the lights in the sky is a lot more complicated now than the fixed stars and the seven "wanderers."  The question is, what system of categorization makes the best sense of what we know?</p>

<p>Not, which historically unimaginable objects are in which semi-mythic categories.<br />
</p>
	 <p>Posted August 16, 2006  9:10 AM by Neil_in_Chicago</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 09:10:29 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #4 from kwb</title>
         <description>comment from kwb on 16.Aug.06</description>
         <content:encoded><p>This is going to sound <i>horribly</i> trollish, and thus I probably couldn't have picked a worse subject to delurk on, but if I understand the Pluto-is-a-planet position (discounting "Cthulhu will eat you!" as an argument) it basically seems to be "Science should say that this is so because we <i>really really want</i> it to be."</p>

<p>Don't we get mad when creationists do that?</p>

<p>I've only read the news stories, so if there's a more substantial argument I'm happy to be wrong, but that's the only case I've seen so far.</p>
	 <p>Posted August 16, 2006  9:16 AM by kwb</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #5 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>By the way, are they still planning to call Xena's moon Gabrielle? Say it ain't so.</p>
	 <p>Posted August 16, 2006  9:20 AM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #6 from Kip W</title>
         <description>comment from Kip W on 16.Aug.06</description>
         <content:encoded><p>Serge, they could call it Anex.</p>

<p>And before anybody runs off and writes any more "additional movements" for Holst's "The Planets," he was concerned with the astrological planets, and that's why "Earth" doesn't get a movement, either. (Though, as Mister Spock tells us, inhabitants of the Moon sing "Twinkle, Twinkle, Little Earth / How I wonder what you're worth.")</p>
	 <p>Posted August 16, 2006  9:25 AM by Kip W</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #7 from Lowell Gilbert</title>
         <description>comment from Lowell Gilbert on 16.Aug.06</description>
         <content:encoded><p><i>In science there is only physics; all the rest is stamp collecting.</i> (Rutherford, supposedly)</p>

<p>Which isn't really true, but "Planet-ness" <b>is</b> stamp collecting.<br />
</p>
	 <p>Posted August 16, 2006  9:25 AM by Lowell Gilbert</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #8 from Michael Barry</title>
         <description>comment from Michael Barry on 16.Aug.06</description>
         <content:encoded><p>Pluto. The little planet that could!</p>
	 <p>Posted August 16, 2006  9:26 AM by Michael Barry</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #9 from James Fox</title>
         <description>comment from James Fox on 16.Aug.06</description>
         <content:encoded><p>The anti-pluto argument basically boils down to : Pluto is not like the other 8, so it should not count as a planet.  However, when you get down to the nitty gritty details, people start to bring in extrasolar planets and arguments about exactly what attributes should be distinctive, and how. Major disagreements abound.</p>

<p>http://www.spacedaily.com/news/outerplanets-04b.html</p>

<p>http://www.thespacereview.com/article/450/1</p>

<p>Personally, I would prefer that an intermediate category including the Plutons and Ceres, be set up.</p>
	 <p>Posted August 16, 2006  9:30 AM by James Fox</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #10 from Joe J</title>
         <description>comment from Joe J on 16.Aug.06</description>
         <content:encoded><p>Pluto is a naturally sympathetic object. It represents the outcast, the outsider. It’s far from the heart of the solar system, from the light and heat we enjoy. It doesn’t really fit in with the others. It’s the wrong size, a runt. Its orbit is out of shape. It just seems lonely.</p>

<p>Really, it’s the underdog of planets, and people love to root for an underdog.</p>

<p>(Personally, I don’t think it is a planet for all of the sound scientific reasoning I’ve heard. It should be taken off the list, but I will miss it.)</p>
	 <p>Posted August 16, 2006  9:31 AM by Joe J</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #11 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>Mickey is a mouse. Donald is a duck. Goofy is a dog. What is Pluto?</p>
	 <p>Posted August 16, 2006  9:45 AM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #12 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>Anex, Kip?</p>
	 <p>Posted August 16, 2006  9:46 AM by Serge</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 09:46:23 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #13 from Stephen Frug</title>
         <description>comment from Stephen Frug on 16.Aug.06</description>
         <content:encoded><p>Please tell me we're not calling that planet -- er, pluton -- whatever -- out beyond Pluto "Xena".</p>
	 <p>Posted August 16, 2006  9:50 AM by Stephen Frug</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #14 from Bill Higgins-- Beam Jockey</title>
         <description>comment from Bill Higgins-- Beam Jockey on 16.Aug.06</description>
         <content:encoded><p>Do you know of Christine Lavin's excellent song <a href="http://www.christinelavin.com/planetx.html" rel="nofollow">"Planet X</a>?"</p>

<p>Reading the lyrics doesn't convey the experience of hearing it, but they're all I can offer at the moment.  </p>

<p>Google says it's on <a href="http://www.google.com/musicl?lid=AtLsvbiTWfN" rel="nofollow">this album</a> and <a href="http://www.google.com/musicl?lid=Q7KeY2qRuMH" rel="nofollow">this album</a> and <a href="http://www.google.com/url?sa=X&q=http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewAlbum%3FplaylistId%3D89926267%26selectedItemId%3D89925640&hl=en&ie=UTF-8" rel="nofollow"> for 99 cents.</a></p>

<p>Lavin comes down on the pro-planet side of the controversy.</p>

<p>She writes, "I've taken liberties with rhythms to make it all fit (the hardest phrase to incorporate was 'International Astronomical Union's Working Group Of Planetary System Nomenclature' (yes, an actual organization)."</p>
	 <p>Posted August 16, 2006  9:53 AM by Bill Higgins-- Beam Jockey</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #15 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>Wasn't there a Duck Dodgers cartoon about Our Hero's journey to Planet X, which he found right after planets U, V and W?</p>
	 <p>Posted August 16, 2006  9:59 AM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #16 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p><i>Wasn't there a Duck Dodgers cartoon about Our Hero's journey to Planet X, which he found right after planets U, V and W?</i></p>

<p>The very first one: <a href="http://en.wikipedia.org/wiki/Duck_Dodgers" rel="nofollow">Duck Dodgers in the 24½th Century</a>.</p>

<p>Planet X should be easy to identify: just check the spectrum for signs of Illudium Phosdex (you know, the shaving-cream atom).</p>
	 <p>Posted August 16, 2006 10:09 AM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #17 from John C</title>
         <description>comment from John C on 16.Aug.06</description>
         <content:encoded><p>Bill:  Haven't heard Lavin's song, but those lyrics are great.  I'm definitely hitting up iTunes for that later.</p>

<p>This thread actually reminded me of a different song, called "Pluto", by 2 Skinnee J's.  Sort of Nerdcore Hip Hop.  Not nearly as comprehensive (or  comprehensible) as Lavin's song, and definitely on the "planet for nostalgia's sake" side, but it always gave me a chuckle.  Lyrics are <a href="http://www.lyricswiki.org/artist_2/2-skinnee-js_lyrics/pluto_lyrics.html" rel="nofollow">here</a>.</p>
	 <p>Posted August 16, 2006 10:11 AM by John C</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #18 from Chryss</title>
         <description>comment from Chryss on 16.Aug.06</description>
         <content:encoded><p>What's cooler: the little girl having a Cthulu doll, or the fact that her T-shirt reads "I have issues," or the deadly insult of "Pluto hayta"? Choices, choices, choices.</p>
	 <p>Posted August 16, 2006 10:21 AM by Chryss</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #19 from Dan MacQueen</title>
         <description>comment from Dan MacQueen on 16.Aug.06</description>
         <content:encoded><p>theophylact: From what I gather from this <a href="http://www.cbc.ca/story/science/national/2006/08/16/expandingsolarsystem.html" rel="nofollow">CBC story</a>, the Moon wouldn't count as a planet because the centre of gravity for the Earth-Moon system is below the Earth's surface.  On the other hand, Charon and Pluto are far enough apart and close enough in mass that the Charon-Pluto system's centre of gravity is above Pluto's surface.  So it's not a planet/satellite system, but a double planet under these proposed rules.</p>

<p>Personally, I'd rather promote the Moon, Titan, and the four Galilean satellites of Jupiter too.</p>
	 <p>Posted August 16, 2006 10:30 AM by Dan MacQueen</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #20 from fidelio</title>
         <description>comment from fidelio on 16.Aug.06</description>
         <content:encoded><p>James Fox, there is a classification that covers Ceres, as well as a lot of other non-large objects orbiting the sun. They're called minor planets. </p>

<p><a href="http://www.iau.org/MINOR_PLANETS_NAMING.245.0.html" rel="nofollow">Here</a> is the IAU's page on naming conventions for the different categories of objects that are lumped together as minor planets, in case anyone wants to kill time looking through this--there's even a link to the complete list of minor planets, in case you need a real time-sink.</p>
	 <p>Posted August 16, 2006 10:52 AM by fidelio</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #21 from Tim May</title>
         <description>comment from Tim May on 16.Aug.06</description>
         <content:encoded><p>"Zena" is a <strong>codename</strong> for the Kuiper Belt object (and maybe planet) 2003 UB313.  "Gabrielle" is similarly a codename for its moon.  These names don't have any official standing, and won't be permanent.  Part of the reason these bodies don't have real names yet is that the IAU has separate committees for naming asteroids, etc, and for naming planetary features, and they couldn't agree over who had jurisdiction.</p>

<p>kwb, the point is, science doesn't care about this.  There isn't a good scientific rationale for <em>any</em> likely definition of "planet".  It's just not an important category in modern astronomy - even if you leave Pluto off, there are four terrestrial planets and four gas giants, and the two groups don't have much in common.  There aren't any factual or theoretical claims involved either way, so there's no scientific reason <em>not</em> to tailor the definition to include Pluto, if it makes people happy.</p>

<p>Mike Brown, codiscoverer of <a href="http://www.gps.caltech.edu/~mbrown/planetlila/index.html" rel="nofollow">UB313</a>, has a <a href="http://www.gps.caltech.edu/~mbrown/whatsaplanet/" rel="nofollow">page</a> up on the issues and possible solutions.</p>
	 <p>Posted August 16, 2006 11:09 AM by Tim May</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #22 from Meredith</title>
         <description>comment from Meredith on 16.Aug.06</description>
         <content:encoded><p>I know I'm petulant about this, but yes, I'm one of those people who <i>wants</i> Pluto to remain a planet, because I <i>want</i> a planet called Xena that has a moon named Gabrielle, dammit!!!  *stamps foot*</p>

<p>(Why yes, I have been a hard-core Xenite since 1995.  Why do you ask? :)</p>

<p>I absolutely adore that Christine Lavin song, btw.  It's particularly amusing to see performed live.</p>
	 <p>Posted August 16, 2006 11:17 AM by Meredith</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #23 from adamsj</title>
         <description>comment from adamsj on 16.Aug.06</description>
         <content:encoded><p>"Mother very tartily made crappy jelly sandwiches undermining neutrality protocols, xenophobe!"</p>

<p>I think I prefer the original.</p>
	 <p>Posted August 16, 2006 11:18 AM by adamsj</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #24 from adamsj</title>
         <description>comment from adamsj on 16.Aug.06</description>
         <content:encoded><p>"Mother very tartily made crappy jelly sandwiches undermining neutrality protocols, xenophobic Googlephile!"</p>

<p>It's beginning to grow on me.</p>
	 <p>Posted August 16, 2006 11:19 AM by adamsj</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #25 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p><i>Personally, I'd rather promote the Moon, Titan, and the four Galilean satellites of Jupiter too.</i></p>

<p>But then you'd have the rather odd situation of "the Moon" not being a "moon" anymore.  Not to mention the fact that the Galilean satellites are the oldest examples of "moons" other than Luna.</p>
	 <p>Posted August 16, 2006 11:36 AM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #26 from Xopher</title>
         <description>comment from Xopher on 16.Aug.06</description>
         <content:encoded><p><i>And before anybody runs off and writes any more "additional movements" for Holst's "The Planets," he was concerned with the astrological planets, and that's why "Earth" doesn't get a movement, either. </i></p>

<p>Actually, modern astrologers look at the influence of Pluto (or rather the generational trends that roughly map to its Zodiac transition, and a few other things).  Pluto is said to "rule" death and the occult.  My natal Pluto is conjunct Venus, which makes for some interesting predictions about my personality, most of which are true.  </p>

<p>How to use self-fulfilling prophecy to make yourself into a very <i>interesting</i> person.</p>
	 <p>Posted August 16, 2006 11:38 AM by Xopher</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #27 from Stephan Zielinski</title>
         <description>comment from Stephan Zielinski on 16.Aug.06</description>
         <content:encoded><p>Pluto is not a planet-- but Yuggoth is.<br />
</p>
	 <p>Posted August 16, 2006 11:46 AM by Stephan Zielinski</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 11:46:30 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #28 from Dan MacQueen</title>
         <description>comment from Dan MacQueen on 16.Aug.06</description>
         <content:encoded><p><i>But then you'd have the rather odd situation of "the Moon" not being a "moon" anymore. Not to mention the fact that the Galilean satellites are the oldest examples of "moons" other than Luna.</i></p>

<p>What's wrong with overlapping categories?  Pluto is a planet that's also a Kuiper Belt object, Charon is a (provisional) planet that's also a Kuiper Belt object and a moon, Ceres is a planet/asteroid, etc.</p>
	 <p>Posted August 16, 2006 11:54 AM by Dan MacQueen</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #29 from Lois Fundis</title>
         <description>comment from Lois Fundis on 16.Aug.06</description>
         <content:encoded><p>Our <a href="http://www.weirtondailytimes.com/" rel="nofollow">local newspaper</a> ran an AP article on this controversy yesterday. Not having John's video of his daughter siccing the Elder Gods on naysayers, they instead mentioned the <a href="http://pluto.jhuapl.edu/" rel="nofollow">New Horizons</a> mission, which it said is a 9¢-year journey. If that character is unreadable for anyone it's the cents symbol, a c with a / through it, nine-hundreths of a dollar. Planet or no planet, I think Pluto is worth more than 9 cents a year!</p>

<p>Another suggestion: maybe they can demote Mercury and Venus. After all, they don't have moons. The other planets have moons. Maybe you should need a moon to be a planet. Or multiple moons. Pluto apparently has more moons than Earth does -- are we still a planet?</p>

<p>It's a big universe out there. Why not ten planets? Or thirteen or, I don't know, twenty-seven? Whatever. It may be more than your average third-grader can memorize, but so what? Geez, I remember when Jupiter only had 12 moons!</p>
	 <p>Posted August 16, 2006 11:56 AM by Lois Fundis</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #30 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p><i>These names don't have any official standing, and won't be permanent.</i></p>

<p>Sure, and when we rescued a puppy litter, my wife called her favorite 'Brownie'. Just a puppy name, she said. Suuuure. More than 13 years later, that's what my wife still calls her. Me, I refer to our oldest doguette as Stinky-breath.</p>
	 <p>Posted August 16, 2006 12:02 PM by Serge</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 12:02:32 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #31 from Matt Austern</title>
         <description>comment from Matt Austern on 16.Aug.06</description>
         <content:encoded><p>Geoffrey W. Marcy of UC Berkeley is right to be dismissive of this whole question, no? Whether we call Pluto a planet or not is not a scientific question. (The fact that it's being decided by a vote in a standards committee should be a hint of that fact.) It's just a matter of what kind of labels we find it convenient to use.<br />
</p>
	 <p>Posted August 16, 2006 12:02 PM by Matt Austern</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #32 from Xopher</title>
         <description>comment from Xopher on 16.Aug.06</description>
         <content:encoded><p>Am I the only one who's picturing a weeping little girl at recess, as a bunch of nasty kids stand around her in a ring, swinging their arms in time as they chant "Pluto's not a plaaaaanet!  Pluto's not a plaaaaanet!"?</p>

<p>Until, of course, the Elder Gods eat them (Lovecraftian tradition) or they're torn apart by bears (Judeo-Christian tradition).  (In the Pagan tradition <i>they</i> would tear <i>her</i> apart, then discover she was right all along, followed by a lot of weeping and gory suicides (offstage).)</p>
	 <p>Posted August 16, 2006 12:44 PM by Xopher</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #33 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>Why is the act of labeling not a part of science? </p>
	 <p>Posted August 16, 2006 12:44 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #34 from Fragano Ledgister</title>
         <description>comment from Fragano Ledgister on 16.Aug.06</description>
         <content:encoded><p>I'd say that anyone who wants to keep the planetary name 'Xena' is Lawless.</p>
	 <p>Posted August 16, 2006  1:13 PM by Fragano Ledgister</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 13:13:54 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #35 from Stefan Jones</title>
         <description>comment from Stefan Jones on 16.Aug.06</description>
         <content:encoded><p><i>Why is the act of labeling not a part of science?</i></p>

<p>I always felt like wearing a white lab coat while using my Dymo . . .</p>

<p><br />
* * *</p>

<p>I'm glad Clyde Tombaugh isn't around to see this.</p>

<p>Assuming he's really dead, and didn't have his brain stuck in a life support cylinder and whisked off to the dark places between stars.</p>
	 <p>Posted August 16, 2006  1:16 PM by Stefan Jones</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #36 from Dave Bell</title>
         <description>comment from Dave Bell on 16.Aug.06</description>
         <content:encoded><p>There are several rules that make up the definition, and Ceres seems to meet them: self-gravity spherical, orbiting the Sun, and so on. The double-planet point, for Pluto and Charon, is one of those things which I think is a sign of people thinking ahead, about poossible extra-solar planets.</p>

<p>I think teachers are going to be dreading the start of the new school year.<br />
</p>
	 <p>Posted August 16, 2006  1:22 PM by Dave Bell</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 13:22:23 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #37 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>As for myself, Stefan, I want a dayglo-green lab coat, with a badge that says "Clayton Forrester"...</p>

<p>Seriously though, when you label something, you define and circumscribe what it <i>is</i>. Isn't that one of the things that science does? </p>
	 <p>Posted August 16, 2006  1:37 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #38 from JESR</title>
         <description>comment from JESR on 16.Aug.06</description>
         <content:encoded><p>Analysis and naming are parts of science; however, in this case, that is not the most important part of the discussion .  The word "planet" has been tautological until now; a planet has been defined as one of those things generally called planets. In common usage, that meaning will persist (and I suspect the elder gods are big on vernacular definitions); in astronomic systematics, either the word will be superceded or a definition will be developed which will always  be in discord with the vernacular definition.</p>

<p>Ask a gardener and a botanical systematist to define "Chrysanthemum" for a real world demonstration of how that process works.</p>
	 <p>Posted August 16, 2006  1:43 PM by JESR</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #39 from tavella</title>
         <description>comment from tavella on 16.Aug.06</description>
         <content:encoded><p>I still think half of the problem is the attempt to  keep Mercury in with the 'real planets' and Pluto out (to keep Xena out).  What we really have is four gas giants, three rocks big enough to have dynamic atmospheres, and a bunch of round rocks; dry ones like Mercury and Ceres close in, icy ones like Pluto and Xena out far. If I was defining, I'd have three classes; the gas giants; Mars, Earth, and Venus as 'planets'; and Mercury, Ceres, Pluto, Xena and probably many more to be discovered as 'dwarf planets'.</p>

<p>I like the double planet officialization for Pluto-Charon, though.</p>
	 <p>Posted August 16, 2006  2:13 PM by tavella</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 14:13:52 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #40 from James</title>
         <description>comment from James on 16.Aug.06</description>
         <content:encoded><p>Hah.</p>

<p>I think they should stay with the original rough definition -- moving natural celestial objects with regular orbits visible to the naked eye.  With an exception for the Sun, since its motion is only apparent (although it was originally a "planet").</p>

<p>Get rid of Uranus and Neptune along with Pluto.  Return to the classics.<br />
</p>
	 <p>Posted August 16, 2006  2:34 PM by James</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #41 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p><i>I still think half of the problem is the attempt to keep Mercury in with the 'real planets' and Pluto out (to keep Xena out). What we really have is four gas giants, three rocks big enough to have dynamic atmospheres, and a bunch of round rocks; dry ones like Mercury and Ceres close in, icy ones like Pluto and Xena out far. If I was defining, I'd have three classes; the gas giants; Mars, Earth, and Venus as 'planets'; and Mercury, Ceres, Pluto, Xena and probably many more to be discovered as 'dwarf planets'.</i></p>

<p>Mercury is naturally grouped with Earth, Venus, and Mars as one of the terrestrial planets: metallic core, rocky mantle and crust. It's even got a magnetic field.  It's also more massive than any of the moons (even Titan), and almost a thousand times more massive than Ceres.  It's big enough to have an atmosphere (its surface gravity is the same as that of Mars) -- if it weren't so close to the Sun.</p>

<p>Pluto and the other Kuiper Belt objects have a much different composition -- basically a mix of ices (including things like frozen methane) with a leavening of rocks and dust.</p>

<p>(And given that people have considered it a "planet" along with Venus, Mars, Jupiter, and Saturn for thousands of years, it's got much more a traditional claim than something like Pluto!)</p>
	 <p>Posted August 16, 2006  2:50 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #42 from Melissa Singer</title>
         <description>comment from Melissa Singer on 16.Aug.06</description>
         <content:encoded><p>My 10-yo and I were just talking about this this morning, reading the Newsday article which claims someone has proposed using the word "plutons" for the little rocky non-planet "worlds" (including Pluto but not Mercury).  The word "plutons" made my kid LOL on the subway.  She thinks it's one of the funniest things she's ever heard.</p>

<p>In her opinion, if Ceres and all the other little rocky things are going to be planets, Pluto should be one too.  But she's not sure about having little rocky things be planets in the first place.  I think she could easily become a member of the Pluto Haters club.   </p>
	 <p>Posted August 16, 2006  2:53 PM by Melissa Singer</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #43 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p><i>I think they should stay with the original rough definition -- moving natural celestial objects with regular orbits visible to the naked eye. With an exception for the Sun, since its motion is only apparent (although it was originally a "planet").</i></p>

<p>So the Moon goes back to being a "planet," too? ;-)</p>

<p>I seem to recall reading somewhere that traditional Indian astronomy/astrology had nine "planets": Sun, Moon, Mercury, Venus, Mars, Jupiter, Saturn, and two invisible planets that were somehow responsible for eclipses.  The fact that nine is a number with some mystical significance in Hinduism is, of course, completely irrelevant....</p>
	 <p>Posted August 16, 2006  2:59 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #44 from Lenora Rose</title>
         <description>comment from Lenora Rose on 16.Aug.06</description>
         <content:encoded><p>Dan MacQueen said:<br />
<i>What's wrong with overlapping categories? Pluto is a planet that's also a Kuiper Belt object, Charon is a (provisional) planet that's also a Kuiper Belt object and a moon, Ceres is a planet/asteroid, etc.</i></p>

<p>And suddenly, this debate makes me think of Connie Willis's "At the Rialto", in which we encoutner altogether too many is full of actress/models and dancer/hairdressers?</p>
	 <p>Posted August 16, 2006  3:08 PM by Lenora Rose</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #45 from Lenora Rose</title>
         <description>comment from Lenora Rose on 16.Aug.06</description>
         <content:encoded><p>Sorry about the mangled sentence. I tried to correct it, but too late.</p>

<p>That should be:</p>

<p>...in which we encounter altogether too many actress/models...</p>
	 <p>Posted August 16, 2006  3:11 PM by Lenora Rose</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #46 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p>JESR said: <i>Analysis and naming are parts of science; however, in this case, that is not the most important part of the discussion . The word "planet" has been tautological until now; a planet has been defined as one of those things generally called planets. In common usage, that meaning will persist (and I suspect the elder gods are big on vernacular definitions); in astronomic systematics, either the word will be superceded or a definition will be developed which will always be in discord with the vernacular definition.</i></p>

<p>The problem for astronomers started in the 1990s, which is when A) people started finding Kuiper Belt objects and realizing that Pluto was only one of a potentially large number of icy... um... bodies out beyond Neptune; and B) people started finding planets around other stars.[*]</p>

<p>Lately there's been a definitional problem in the other direction: how big can a "planet" get before you should call it a brown dwarf?  Should you consider the possible formation mechanisms?  (Planets are thought to form out of gas disks around young stars, while brown dwarfs are supposed to form directly out of collapsing interstellar gas clouds, like regular stars.)</p>

<p>Here's another interesting question: if you found something similar to the Earth, or to Jupiter, out wandering in interstellar space -- <i>not</i> orbiting an individual star -- would you still call it a planet?  Simulations suggest that the mutual interaction of multiple planets around a star could eject one of the planets; this may be how you can end up with some of the extrasolar systems we see, where gas giants are in close, highly elliptical orbits around the star, instead of the nearly circular orbits we see in our solar system.</p>

<p>[*] Including planets around a <i>neutron star</i>, which no one except maybe Poul Anderson was expecting.<br />
</p>
	 <p>Posted August 16, 2006  3:26 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #47 from Caroline</title>
         <description>comment from Caroline on 16.Aug.06</description>
         <content:encoded><p>Stefan Jones --</p>

<p>We have a very nice Brother labeler in the lab and in fact I have only used it while wearing a white coat.  It labels such dreadfully scientific things as the sizes of screws inside various drawers.  Okay, so it also labeled the x, y, and z axes of the micromanipulator, which is much more scientific-sounding.</p>

<p>More seriously -- this is probably my physics training coming out, but I think labeling and categorizing things is useful science only insofar as it leads to seeing patterns that lead to understanding underlying processes.  This means it is very useful and necessary for nearly everything, since we don't understand the underlying processes of lots of things very well.</p>

<p>Arguing over planet/moon/random space object categorizations can actually lead to fruitful discussion about how these things came to be, and what the similarities or differences in two objects mean with regards to their origins.  (I did one summer internship in astronomy and then left it behind, so IANAA [I am not an astronomer].)</p>
	 <p>Posted August 16, 2006  3:28 PM by Caroline</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #48 from John M. Ford</title>
         <description>comment from John M. Ford on 16.Aug.06</description>
         <content:encoded><p><i>"Science should say that this is so because we really really want it to be."</i><br />
<i>Don't we get mad when creationists do that?</i></p>

<p>That isn't what creationists say.  They say, "Your entire view of the structure of the biological world is absolutely wrong, because God said so in a questionably translated text from several thousand years ago."  If the actual statement, rather than the thought, were "We say special creation is true because we want it to be," it would imply doubt and a deliberate choice.</p>

<p>As observed above, what one calls such an object really is subjective; there are all kinds of objects that fit into the broad "planet/moon" categories.  (Nobody is suggesting that Pluto is, say, a comet, or a planetoid.)  Some of those objects are going to fall into an in-between area.  (This is true of biological classification as well.)  </p>

<p>More importantly, it <i>doesn't matter</i> for any practical purpose what side it falls on.  It doesn't change our understanding of the object's physical nature -- which saying "This is biologically related to this entire family of biota" as distinct from "This was created by magic, all by itself, and will never change" does.</p>

<p><br />
</p>
	 <p>Posted August 16, 2006  3:30 PM by John M. Ford</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #49 from P J Evans</title>
         <description>comment from P J Evans on 16.Aug.06</description>
         <content:encoded><p>They might run into problems using <i>pluton</i> for a small rocky astronomical object, seeing as it's already in use in <a href="http://en.wikipedia.org/wiki/Batholith" rel="nofollow">geology</a>.</p>
	 <p>Posted August 16, 2006  3:40 PM by P J Evans</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #50 from JESR</title>
         <description>comment from JESR on 16.Aug.06</description>
         <content:encoded><p>The problem with using "pluton" for Pluto-like objects is that it already has a definition in terrestrial geology. ("A body of igneous rock formed beneath the surface of the earth by consolidation of magma." according to Free Dictionary). There's been a growing tendency to avoid terms with assigned meanings in other fields. </p>
	 <p>Posted August 16, 2006  3:43 PM by JESR</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #51 from Stephen Frug</title>
         <description>comment from Stephen Frug on 16.Aug.06</description>
         <content:encoded><p><i>...and two invisible planets...</i></p>

<p>Now <i>that</i> sounds cool.  I think we need to go back to having invisible planets.<br />
</p>
	 <p>Posted August 16, 2006  3:46 PM by Stephen Frug</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #52 from Skwid</title>
         <description>comment from Skwid on 16.Aug.06</description>
         <content:encoded><p>I skimmed that last sentence a bit too quickly and it initially parsed as "...I'd be keeping my distance from stuffed little girls and eldritch gods," which I think might also be excellent advice.</p>

<p>Personally, I tend to fall on the Westerfeld side of things, but I really think I stopped caring a couple of decades ago.</p>
	 <p>Posted August 16, 2006  4:10 PM by Skwid</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #53 from Ross Smith</title>
         <description>comment from Ross Smith on 16.Aug.06</description>
         <content:encoded><p>For anyone who wants to read it straight from the metaphorical horse's mouth, you can find the full text of the IAU's resolution here:</p>

<p><a href="http://www.iau2006.org/mirror/www.iau.org/iau0601/iau0601_resolution.html" rel="nofollow">Draft resolution</a><br />
<a href="http://www.iau2006.org/mirror/www.iau.org/iau0601/iau0601_release.html" rel="nofollow">Press release</a><br />
<a href="http://www.iau2006.org/mirror/www.iau.org/iau0601/iau0601_Q_A.html" rel="nofollow">FAQ</a></p>

<p>(Officially it's only a "draft resolution", but I gather they were careful to make sure everyone was unanimous before releasing it, so I don't think any changes are likely.)</p>

<p>Personally I try to avoid the whole mess by just not using the unqualified term "planet"; I use "major planet" for the big eight and "planetesimal" for everything else.<br />
</p>
	 <p>Posted August 16, 2006  4:19 PM by Ross Smith</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #54 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p><i>little girls and eldritch gods</i></p>

<p>There's a difference?</p>
	 <p>Posted August 16, 2006  4:21 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #55 from Juli Thompson</title>
         <description>comment from Juli Thompson on 16.Aug.06</description>
         <content:encoded><p>I get audio from Scalzi's daughter, but no video.  I'm running Safari, so I tried it with Internet Explorer and got the same results.</p>

<p>Is it just me?</p>
	 <p>Posted August 16, 2006  4:33 PM by Juli Thompson</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #56 from Chad Orzel</title>
         <description>comment from Chad Orzel on 16.Aug.06</description>
         <content:encoded><p><i>I get audio from Scalzi's daughter, but no video. I'm running Safari, so I tried it with Internet Explorer and got the same results.</i></p>

<p><i>Is it just me?</i></p>

<p>I think you need to have the very latest version of the Flash player to get the video. I got audio-only until I spent an inordinate amount of time upgrading the Flash player.<br />
</p>
	 <p>Posted August 16, 2006  4:38 PM by Chad Orzel</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #57 from Greg London</title>
         <description>comment from Greg London on 16.Aug.06</description>
         <content:encoded><p>I can just imagine the classroom a thousand years from now.</p>

<p>student: How did the planet Mars get its name?</p>

<p>teacher: Ancient Babylonian astronomers named the planet Nergal after their God of Fire, probably because of the planet's reddish appearance. Ancient Greeks identified Nergal with Ares, their god of war. And the Roman god of war was Mars. So Mars.</p>

<p>s: And what about Venus?</p>

<p>s: Babylonians named the planet "Ishtar", their Goddess of Love, and the ancient Roman goddes of love was Venus.</p>

<p>s: And what about Xena?</p>

<p>t: (long, sad sigh)</p>

<p>s: What?</p>

<p>t: Well, there was this thing called 'television', see...<br />
</p>
	 <p>Posted August 16, 2006  4:56 PM by Greg London</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 16:56:48 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #58 from Juli Thompson</title>
         <description>comment from Juli Thompson on 16.Aug.06</description>
         <content:encoded><p>Chad,</p>

<p>Thanks.  I tend to assume that all computers are out to get me to a greater or lesser degree, so it's good to hear that it's only a download issue.</p>

<p>(Note to listening hardware - This doesn't mean you.  Especially it doesn't mean my dearly beloved laptop, paragon of computerly virtue.)</p>
	 <p>Posted August 16, 2006  4:59 PM by Juli Thompson</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #59 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p>Stephen Frug said:<br />
<blockquote><i>...and two invisible planets...</i></blockquote></p>

<p><i>Now that sounds cool. I think we need to go back to having invisible planets.</i></p>

<p>Well, there's always Antichthon, the Counter-Earth of Pythagorean and later lore, which is conveniently hidden on the opposite side of the Sun from us.  And Vulcan, which supposedly orbited inside Mercury's orbit and was occasionally reported in the mid-19th Century.  And Charles Fort apparently collected all sorts of odd reports of phantom planets.</p>

<p>There's a very amusing summary of this stuff in one of the collected columns ("Nine Is Not Enough") in Kenneth Hite's <i><a href="http://www.sjgames.com/suppressed2/index.html" rel="nofollow">Suppressed Transmissions 2</a></i>:</p>

<blockquote>... Where are the ruins of the Egyptian space colonies, the hawk-people, the enormous clockwork aether guns going to turn up now that we've selfishly wasted all of our real planets on astrophysics and exogeology?  Well, in the Extra Planets, of which I've selected at least seven from the potential galaxies available.  That's what they're there for, and only a cad would point out that they're not, technically speaking, there.</blockquote>
	 <p>Posted August 16, 2006  4:59 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #60 from tavella</title>
         <description>comment from tavella on 16.Aug.06</description>
         <content:encoded><p><i>Mercury is naturally grouped with Earth, Venus, and Mars as one of the terrestrial planets: metallic core, rocky mantle and crust. It's even got a magnetic field. </i></p>

<p>Ah, but Ceres is also differentiated, with core, icy mantle, and crust. It's very likely, in fact, that it has a magnetic field as well; the Dawn probe will tell us. </p>

<p>Which requires falling back on very arbitrary mass/diameter definitions. Sure, it's much less massive than Mercury... but then, in a solar system that has Jupiter in it, that seems silly as a definition. All the rocky planets are just trash next to the gas giants. </p>

<p> </p>
	 <p>Posted August 16, 2006  5:00 PM by tavella</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #61 from Avram</title>
         <description>comment from Avram on 16.Aug.06</description>
         <content:encoded><p>But Greg, a thousand years from now television will seem just as ancient and respect-worthy as books as classical culture does to us. </p>

<p>"Xena Lawless was a popular cult figure of the High Western English people. She was an instance of the outlaw-hero archetype (see also: Robin Hood, Han Solo, G Gordon Liddy), and was also associated with graceful combat, feminism, and anarchism." </p>
	 <p>Posted August 16, 2006  5:06 PM by Avram</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #62 from Xopher</title>
         <description>comment from Xopher on 16.Aug.06</description>
         <content:encoded><p>Avram, I'm reminded of Delany's future cultural historian whose thesis was that the Beatles were simply a late and watered down version of the Orpheus myth.  Where he was torn to pieces by shrieking maenads, they merely had their clothes torn by shrieking fannes. Clearly a transparent reference to the earlier story, rather than an actual historical event!</p>
	 <p>Posted August 16, 2006  5:21 PM by Xopher</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #63 from John M. Ford</title>
         <description>comment from John M. Ford on 16.Aug.06</description>
         <content:encoded><p><i>"[Xena] was also associated with graceful combat, feminism, and anarchism."</i></p>

<p>Makes you wish for the time-shift episode where she teams up with Emma Goldman.</p>
	 <p>Posted August 16, 2006  5:22 PM by John M. Ford</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #64 from Greg London</title>
         <description>comment from Greg London on 16.Aug.06</description>
         <content:encoded><p><i>G Gordon Liddy), and was also associated with graceful combat, feminism, and anarchism." </i></p>

<p>G Gordon Liddy was a feminist? I'll have to change my opinion of the man...<br />
</p>
	 <p>Posted August 16, 2006  5:33 PM by Greg London</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #65 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p><i>But Greg, a thousand years from now television will seem just as ancient and respect-worthy as books as classical culture does to us.</i></p>

<p><i>"Xena Lawless was a popular cult figure of the High Western English people. She was an instance of the outlaw-hero archetype (see also: Robin Hood, Han Solo, G Gordon Liddy), and was also associated with graceful combat, feminism, and anarchism."</i></p>

<p>There's a role-playing game called <i><a href="http://www.heliograph.com/diana/" rel="nofollow">Diana: Warrior Princess</a></i>, which is based on the idea of the 20th Century as retold a thousand years from now, with exactly the same sense of historical accuracy that <i>Xena, Warrior Princess</i> displays toward the Classical era. ("Join Diana and her friends: Fergie, Red Ken, and Wild Bill Gates as they battle the evil War God Landmines, Thatcher the Sorceress, and other nefarious villains in a world of rampant anachronism based on the 20th Century.")</p>
	 <p>Posted August 16, 2006  5:36 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #66 from Malthus</title>
         <description>comment from Malthus on 16.Aug.06</description>
         <content:encoded><p>I personally am in favor of retaining Pluto as a planet, if only because the namer is still alive.</p>

<p>As a side note, one of the recent threads had a link to a speech by the Canadian Privacy Commissioner. I'm having a hard time digging it up, would anyone mind reposting it?</p>
	 <p>Posted August 16, 2006  5:37 PM by Malthus</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #67 from Ian Myles Slater</title>
         <description>comment from Ian Myles Slater on 16.Aug.06</description>
         <content:encoded><p>I have suspected for a while that "Xena" was also a covert "light-weight" allusion to the elment Xenon --  a  very mild joke, following the Uranus - Neptune - Pluto / Uranium -Neptunium [in 1941] - Plutonium [in 1942] sequence for the outer Gas Giants and three heavy elements (92, 93, and 94).</p>

<p>I don't know if this has been addressed directly by anyone involved, but I would be surprised if the suggestion is original with me.</p>

<p>The name might also serve as a personified (and feminine) form of xenos (meaning stranger, guest and host), which might have seemed appropriate, too. With the addition of more distint objects to the roster it will probably be seen as less of a "stranger" in the Solar System, so I wouldn't press that interpretation.</p>
	 <p>Posted August 16, 2006  5:42 PM by Ian Myles Slater</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #68 from Greg London</title>
         <description>comment from Greg London on 16.Aug.06</description>
         <content:encoded><p>Wikipedia <a href="http://en.wikipedia.org/wiki/2003_UB313" rel="nofollow">states</a> that the name "xena" for planet 10 really did come from the TV show.</p>

<p><i>According to the IAU rules, TNOs must be named after deities of creation, with the exception of plutinos, which are named after underworld deities.</i></p>

<p><i>The team refers to the object informally by the nickname Xena, after the television series Xena: Warrior Princess.  ... the team has also claimed that they chose the name because "We have always wanted to name something Xena",</i></p>
	 <p>Posted August 16, 2006  5:47 PM by Greg London</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #69 from Serge</title>
         <description>comment from Serge on 16.Aug.06</description>
         <content:encoded><p>They could have come up with worse than Xena for a planet's name. How about <i>Cleopatra 2525</i>?</p>
	 <p>Posted August 16, 2006  6:01 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #70 from kathryn from sunnyvale</title>
         <description>comment from kathryn from sunnyvale on 16.Aug.06</description>
         <content:encoded><p>Anyone else here hearing "Pluton" that thinks a pluton ought to be found at the farmer's markets?</p>

<p>For example, <a href="http://en.wikipedia.org/wiki/Image:1_ceres.png" rel="nofollow"> Ceres</a> is a <a href="http://waynesword.palomar.edu/images/pluots1b.jpg" rel="nofollow"> pluot</a>, and <a href="http://www.jpl.nasa.gov/releases/2004/85.cfm" rel="nofollow"> Sedna</a> is an <a href="http://images.google.com/images?hl=en&q=aprium" rel="nofollow"> aprium</a>. (Except now I see that those hybrid fruit names are all registered trademarks.)</p>

<p>Where are the best collections of the mnemonicists' new work? I was doing ok with "So, my very easy method? Just set up nine planets, Sedna." But that doesn't scale. </p>
	 <p>Posted August 16, 2006  6:06 PM by kathryn from sunnyvale</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #71 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p>tavella said:<br />
<i>Ah, but Ceres is also differentiated, with core, icy mantle, and crust. It's very likely, in fact, that it has a magnetic field as well; the Dawn probe will tell us.</i></p>

<p><i>Which requires falling back on very arbitrary mass/diameter definitions. Sure, it's much less massive than Mercury... but then, in a solar system that has Jupiter in it, that seems silly as a definition. All the rocky planets are just trash next to the gas giants.</i></p>

<p>Actually, they're not.  Here are the relative masses: Mercury/Ceres: 347; Mars/Mercury: 2; Earth/Mars: 9; Uranus/Earth: 15; Jupiter/Uranus: 22.  So it's easier to argue for continuity, of a sort, between the terrestrial planets (including Mercury) and the gas giants, than it is to try for continuity between the terrestrials and Ceres.</p>

<p>Jupiter does dominate the solar system (well, aside from the Sun, that is ;-); only Saturn comes close.  But the low-mass end of the gas giant family is surprisingly small.<br />
</p>
	 <p>Posted August 16, 2006  6:06 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #72 from Chris Clarke</title>
         <description>comment from Chris Clarke on 16.Aug.06</description>
         <content:encoded><blockquote>Okay, so it also labeled the x, y, and z axes of the micromanipulator</blockquote>

<p>Sounds much like my last employee review.</p>
	 <p>Posted August 16, 2006  6:13 PM by Chris Clarke</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #73 from Christopher</title>
         <description>comment from Christopher on 16.Aug.06</description>
         <content:encoded><p>> I'd say that anyone who wants to keep the <br />
> planetary name 'Xena' is Lawless.</p>

<p>Not entirely lawless. Loosely lawless, perhaps.</p>
	 <p>Posted August 16, 2006  6:22 PM by Christopher</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #74 from Peter Erwin</title>
         <description>comment from Peter Erwin on 16.Aug.06</description>
         <content:encoded><p><i>Wikipedia states that the name "xena" for planet 10 really did come from the TV show.</i></p>

<p><a href="http://www.gps.caltech.edu/~mbrown/planetlila/" rel="nofollow">This web page</a> of Mike Brown, lead author on the discovery paper, lists some other code names his team has used: "Santa," "Rudolph" (moon of Santa), "Easterbunny," and "Flying Dutchman" (later officially named Sedna).  And "Gabrielle" for the moon of "Xena," of course.  ("We use these names internally simply because they are easier to say and remember than things like 2003 EL61 or S/2005 (2003 UB313) 1.")</p>
	 <p>Posted August 16, 2006  6:28 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #75 from Fragano Ledgister</title>
         <description>comment from Fragano Ledgister on 16.Aug.06</description>
         <content:encoded><p>Christopher: I bow to your mastery.</p>
	 <p>Posted August 16, 2006  7:19 PM by Fragano Ledgister</p></content:encoded>
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         <pubDate>Wed, 16 Aug 2006 19:19:32 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #76 from Derryl Murphy</title>
         <description>comment from Derryl Murphy on 16.Aug.06</description>
         <content:encoded><p>Pluto responds to possible downgrading:</p>

<p>http://www.drinkatwork.com/2006/08/comic-for-tuesday-august-15-2006.html</p>

<p>D</p>
	 <p>Posted August 16, 2006  7:33 PM by Derryl Murphy</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #77 from Bill Higgins-- Beam Jockey</title>
         <description>comment from Bill Higgins-- Beam Jockey on 16.Aug.06</description>
         <content:encoded><p>Serge writes:</p>

<p><i>They could have come up with worse than Xena for a planet's name. How about <b>Cleopatra 2525?</b></i></p>

<p>That <i>already</i> sounds like an asteroid name... hang on... here it is, <a href="http://www.news.cornell.edu/releases/May00/Arecibo.Kleopatra.deb.html" rel="nofollow">216 Kleopatra</a>.</p>

<p>Anyway, if they keep discovering these things, we'll get even worse.  Flyby mission to TheGirlFromUNCLE, anyone?</p>

<p>Malthus writes:</p>

<p><i>I personally am in favor of retaining Pluto as a planet, if only because the namer is still alive.</i></p>

<p>Sad to say, Clyde Tombaugh passed away in 1997, shortly before his 91st birthday. Asteroid 1604 is named "Tombaugh."</p>

<p>In <i>Have Space Suit, Will Travel</i>, Heinlein has Tombaugh still alive and doing astronomy.  We didn't get the Moon bases and space tourism the book describes-- but the prediction that Tombaugh would survive and keep working into the late 20th century was accurate.</p>
	 <p>Posted August 16, 2006  8:04 PM by Bill Higgins-- Beam Jockey</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #78 from Malthus</title>
         <description>comment from Malthus on 16.Aug.06</description>
         <content:encoded><p>Ah, but Tombaugh wasn't the namer, now was he?</p>

<p>If you haven't heard the story, go look it up (IIRC it was in the NYTimes a month ago).<br />
</p>
	 <p>Posted August 16, 2006  8:18 PM by Malthus</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #79 from Ross Smith</title>
         <description>comment from Ross Smith on 16.Aug.06</description>
         <content:encoded><p>If you want mnemonics, a poster at <a href="http://arstechnica.com/" rel="nofollow">Ars Technica</a> suggested "My Very Eager Mission Control Just Showed Us New Planet Called X".</p>
	 <p>Posted August 16, 2006  8:41 PM by Ross Smith</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #80 from Ross Smith</title>
         <description>comment from Ross Smith on 16.Aug.06</description>
         <content:encoded><p>The IAU has more-or-less-officially approved three new planets, bringing the total to 12, but admits that there are quite a few other bodies that will probably qualify after closer examination. If we go by the best current estimates of the sizes of the objects out there, and take the IAU's suggested rule of thumb that planets have diameters over 800 km, we end up with 17 planets in our solar system:</p>

<pre>
Number  Planet             Distance   Diameter
1       Mercury            0.3871 au  4879 km
2       Venus              0.7233 au  12104 km
3       Earth              1.000 au   12746 km
4       Mars               1.524 au   6780 km
5       Ceres              2.767 au   952 km
6       Jupiter            5.203 au   138346 km
7       Saturn             9.537 au   114632 km
8       Uranus             19.19 au   50532 km
9       Neptune            30.07 au   49105 km
10      Orcus              39.47 au   1000 km
11=     Charon             39.48 au   1205 km
11=     Pluto              39.48 au   2306 km
13      2003 EL61          43.34 au   1340 km
14      Quaoar             43.38 au   1000 km
15      2005 FY9           45.64 au   1500 km
16      2003 UB313 (Xena)  67.71 au   2400 km
17      Sedna              509 au     1500 km
</pre>

	 <p>Posted August 16, 2006  9:11 PM by Ross Smith</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #81 from Graydon</title>
         <description>comment from Graydon on 16.Aug.06</description>
         <content:encoded><p>I guess 17 <i>is</i> the mystical number.</p>
	 <p>Posted August 16, 2006  9:15 PM by Graydon</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #82 from CHip</title>
         <description>comment from CHip on 16.Aug.06</description>
         <content:encoded><p>about Ceres -- I have some trouble taking a body  as a planet when it's jostling about among large numbers of other never-made-it lumps. (IIRC that's the current assessment of the Belt, as opposed to the Keplerian vision-of-an-explosion popularized by Heinlein, Nourse, and many others.) I'm remembering a trip to Alaska where we were very seriously informed that not all floating ice is icebergs; there's also "bergy bits" and "trash ice", and maybe another category I'm forgetting. (When half of it is kabonging against the hull outside your window and the other half has one each unbelievably cute fur-covered sausage, formal classification tends to become unimportant....)</p>
	 <p>Posted August 16, 2006 10:13 PM by CHip</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #83 from Greg London</title>
         <description>comment from Greg London on 16.Aug.06</description>
         <content:encoded><p><i>may take some classes. start writing again.</i></p>

<p>(chuckling)</p>

<p>;)<br />
</p>
	 <p>Posted August 16, 2006 10:32 PM by Greg London</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #84 from John M. Ford</title>
         <description>comment from John M. Ford on 16.Aug.06</description>
         <content:encoded><p><i>When half of it is kabonging against the hull outside your window and the other half has one each unbelievably cute fur-covered sausage, formal classification tends to become unimportant....</i></p>

<p>"Look!  Planetoid to starboard!  Belt otters!"</p>

<p><i>"Ooooooooooooooooo!"</i></p>

<p>"Is that a magnetic grapple?"</p>
	 <p>Posted August 16, 2006 10:48 PM by John M. Ford</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #85 from Greg Ioannou</title>
         <description>comment from Greg Ioannou on 16.Aug.06</description>
         <content:encoded><p>Ross, you missed one:</p>

<p>18     Ixion      39.65     980 km</p>
	 <p>Posted August 16, 2006 11:15 PM by Greg Ioannou</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #86 from Greg Ioannou</title>
         <description>comment from Greg Ioannou on 16.Aug.06</description>
         <content:encoded><p>Ooh, looks like there are a whole pile of more. Check out <a href="http://www.gps.caltech.edu/~mbrown/whatsaplanet/howmanplanets.html" rel="nofollow">this page</a> from Mike Brown's website. Note that he doesn't include Charon. And that he says his lab is studying "30 more" that they haven't published findings on yet. </p>
	 <p>Posted August 16, 2006 11:21 PM by Greg Ioannou</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #87 from Ross Smith</title>
         <description>comment from Ross Smith on 16.Aug.06</description>
         <content:encoded><p>Greg Ioannou: <i>Ross, you missed one: 18 Ixion 39.65 980 km</i></p>

<p>I was going by the list on the IAU website, which gives a diameter of 500 km for Ixion. (I suspect one source or the other may have confused radius and diameter somewhere along the line.)</p>

<p><i>Ooh, looks like there are a whole pile of more. Check out this page from Mike Brown's website.</i></p>

<p>Yeah, this shows how silly the whole thing is getting. I was hoping all along that the IAU would let reality overrule politics and rule that Pluto wasn't a planet. There's no question that Pluto and Xena are the same kind of object as all the other KBOs (leftover planetesimals), not the same kind as any of the eight major planets.</p>
	 <p>Posted August 16, 2006 11:33 PM by Ross Smith</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #88 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p><i>Flyby mission to TheGirlFromUNCLE, anyone?</i></p>

<p>Sounds good to me, Bill, although I'd MUCH prefer a mission to IdreamOfJeannie.</p>
	 <p>Posted August 17, 2006 12:06 AM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #89 from chris bond</title>
         <description>comment from chris bond on 17.Aug.06</description>
         <content:encoded><p>I think one of the better objections to the proposed definition is one of the ones Phil Plait mentions <a href="http://www.badastronomy.com/bablog/2006/08/15/congratulations-its-a-planet/" rel="nofollow">here</a>. Under the guidelines, the moon is not a planet, but would become one in something like 40 million years.</p>
	 <p>Posted August 17, 2006 12:11 AM by chris bond</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #90 from Epacris</title>
         <description>comment from Epacris on 17.Aug.06</description>
         <content:encoded><p>Hey, you wanna see a taxonomy grudge-match? Go ask a gathering of botanical 'stamp collectors' about classifying the Eucalypts; light blue touch paper and stand back. Personally, I'm <em>still</em> grumpy with what they did to the Epacridaceae.</p>

<p>I recently put up <a href="http://fallowgleanings.blogspot.com/2006/08/another-new-word-planemos.html" rel="nofollow">a few links</a> about some of the newer, stranger (to us), things that are turning up astronomically. Dontcha love the feeling of stretching the brain sometimes? (related to sensawunda) You can see that the whole planet definition debate reaches well beyond heliopause.  There's interesting things turning up biologically as well. Ain't the universe a fascinating place? Another reason to try to stay here when it does seem iffy.</p>

<p>The sentiment below, tho' not new, is one meseems is getting a good workout in various forms -- with differing degrees of snappiness -- of late.</p>

<p>From: <a href="http://news.bbc.co.uk/2/hi/science/nature/5051706.stm" rel="nofollow">Mini-planet systems get stranger</a>  ( http://news.bbc.co.uk/2/hi/science/nature/5051706.stm )<br />
Professor Ray Jayawardhana, who also worked on the study, added: "The diversity of worlds out there is truly remarkable. Nature often seems more prolific than our imagination."</p>
	 <p>Posted August 17, 2006 12:16 AM by Epacris</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #91 from Karen Funk Blocher</title>
         <description>comment from Karen Funk Blocher on 17.Aug.06</description>
         <content:encoded><p>Remind me never to annoy Athena Scalzi. Maybe Xena should be renamed for her (and her classical counterpart, of course).</p>

<p>Wikipedia mentions that the X in Xena is also a reference to the old Planet X theory (as opposed to the Planet Ten theory, which involves a bunch of people named John). NPR, I think it was, also said that there really hasn't been an official definition of a planet before now.  "A planet is round" is a good start, and a minimum size and mass is necessary, but that center of gravity thing confuses me a bit.  Shouldn't a planet be something that orbits its sun, rather than orbiting a planet?</p>

<p>Also, I've read a layman's claim that this new definition could result in thousands of additional planet in this system, as exploration of the Kuiper Belt and environs continues.  Is this likely?</p>
	 <p>Posted August 17, 2006  3:52 AM by Karen Funk Blocher</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #92 from Niall McAuley</title>
         <description>comment from Niall McAuley on 17.Aug.06</description>
         <content:encoded><p><i>Cyberman controller:</i></p>

<p>    Both of you<br />
    Know Mondas as your home world.</p>

<p><i>Both Cybermen</i>:</p>

<p>    True, my lord.</p>

<p><i>Cyberman controller:</i></p>

<p>    So it was mine; and in such secret distance,<br />
    That every minute of its orbit warms<br />
    My last few bio-parts: and now it is<br />
    No longer the tenth planet from our sun <br />
    I'd say we'll stay upon it, yet I must not,<br />
    For certain friends that watched us long and close,<br />
    Whose loves I may not drop, but wail the fall<br />
    Of continuity; and thence it is,<br />
    That I to your assistance do make love,<br />
    Packing our bags for Xena, our new home<br />
    For sundry weighty reasons.</p>

<p><i>Second Cyberman</i></p>

<p>    We shall, my lord,<br />
    Perform what you command us.<br />
</p>
	 <p>Posted August 17, 2006  5:43 AM by Niall McAuley</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #93 from Kathryn from Sunnyvale</title>
         <description>comment from Kathryn from Sunnyvale on 17.Aug.06</description>
         <content:encoded><p>Of course, if these are a new type of object, then I assume one of them is to be an exemplary example- it represents their...<br />
Plutonic ideal</p>
	 <p>Posted August 17, 2006  7:05 AM by Kathryn from Sunnyvale</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #94 from Peter Erwin</title>
         <description>comment from Peter Erwin on 17.Aug.06</description>
         <content:encoded><p><i>Wikipedia mentions that the X in Xena is also a reference to the old Planet X theory (as opposed to the Planet Ten theory, which involves a bunch of people named John). NPR, I think it was, also said that there really hasn't been an official definition of a planet before now. "A planet is round" is a good start, and a minimum size and mass is necessary, but that center of gravity thing confuses me a bit. Shouldn't a planet be something that orbits its sun, rather than orbiting a planet?</i></p>

<p>Well, that's the idea; the problem is that you could have, for example, two equal-mass planetary-type objects, which would orbit around their center of gravity (aka the barycenter, which will be midway between them).  Which is the planet, and which the moon?  The informal term "binary planet" certainly seems apt, and it's analogous to the idea of a binary star.  You can make one have smaller mass, in which case the barycenter moves toward the larger one; but even if the barycenter is one-third of the way between them, it still seems a bit odd to say one of them has to be the moon.</p>

<p>It's not a bad attempt at resolving the planet-moon/binary-planet classification problem.</p>

<p><i>Also, I've read a layman's claim that this new definition could result in thousands of additional planet in this system, as exploration of the Kuiper Belt and environs continues. Is this likely?</i></p>

<p>Dozens -- almost certainly.<br />
Hundreds -- possible.<br />
Thousands -- I'm a little bit dubious, since there's evidence for a sharp falloff in Kuiper Belt density beyond about 50 AU (somewhat less than twice Neptune's orbit), and I don't think current models based on what's already been observed predict that many.</p>

<p>(Of course, if there are Pluto-sized objects out in the Oort Cloud, then you really could have thousands, or more.)</p>
	 <p>Posted August 17, 2006  7:09 AM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #95 from Epacris</title>
         <description>comment from Epacris on 17.Aug.06</description>
         <content:encoded><p>Peter, re "binary planets" &mdash; apparently <a href="http://news.bbc.co.uk/2/hi/5241774.stm" rel="nofollow">something</a> very similar to what you describe has already been observed.  As far as I can make out, at the moment the suggested name for the ones seen so far is "<a href="http://en.wikipedia.org/wiki/Planemo" rel="nofollow">planemos</a>" (from planetary mass object).</p>
	 <p>Posted August 17, 2006  7:28 AM by Epacris</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #96 from NelC</title>
         <description>comment from NelC on 17.Aug.06</description>
         <content:encoded><p>I have to say I don't like the word "pluton". Sounds too similar to Pluto, for a start, and I don't like the sound of the final syllable, don't know why.</p>

<p>Whatever happened to "plutino"? A much more upbeat sound to it, though I guess it literally means "little Pluto", which leads to a question of whether Pluto can be a plutino.</p>

<p>"Minor planet" still appeals to me. We can corral off the nine as Major Planets, then everything discovered after Pluto becomes a minor planet, only of interest to s/t/a/m/p/ c/o/l/l/e/c/t/o/r/s/ astronomers. Teachers can breathe a sigh of relief that they only have to make one small change now, and not have to update their knowledge every year. </p>
	 <p>Posted August 17, 2006  8:46 AM by NelC</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #97 from Howard Peirce</title>
         <description>comment from Howard Peirce on 17.Aug.06</description>
         <content:encoded><p><i>Flyby mission to TheGirlFromUNCLE, anyone?</i></p>

<p>I have it on good authority that there are no fewer the <i>three</i> asteroids named Marcia: Marcia, Marcia, Marcia!</p>

<p>Speaking of Planet X, The Zombie Astronaut this month has for download an old 1950s BBC-radio serial about alien probes on Earth and mysterious transmissions from the vicinity of Planet X: <a href="http://za-serials.livejournal.com/" rel="nofollow">Orbit One Zero</a>. Great vintage British SF of the Qautermain school. </p>
	 <p>Posted August 17, 2006  8:51 AM by Howard Peirce</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #98 from Niall McAuley</title>
         <description>comment from Niall McAuley on 17.Aug.06</description>
         <content:encoded><p>I quite like the definition which says any body big enough to be spherical under its own gravity is a planet. If you want to add that it's only a planet if it's not a moon of another planet, OK, since moon is a well understood term.</p>

<p>So Pluto stays in, Ceres is back in, Xena and friends out in the Kuiper belt are in, but Titan, Ganymede, Triton and so on are out.</p>

<p>So is Charon a planet or a moon? I vote planet, under this definition.<br />
</p>
	 <p>Posted August 17, 2006  8:55 AM by Niall McAuley</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #99 from ajay</title>
         <description>comment from ajay on 17.Aug.06</description>
         <content:encoded><p>Charon's a double planet (because the CoG is outside the surface of Pluto) or a moon (because it's not the largest body in its planet-moon system).</p>
	 <p>Posted August 17, 2006  9:17 AM by ajay</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #100 from Greg London</title>
         <description>comment from Greg London on 17.Aug.06</description>
         <content:encoded><p><i>double planet (because the CoG is outside the surface </i></p>

<p>Good grief. Their commute must totally suck!<br />
</p>
	 <p>Posted August 17, 2006 10:10 AM by Greg London</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 10:10:38 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #101 from Peter Erwin</title>
         <description>comment from Peter Erwin on 17.Aug.06</description>
         <content:encoded><p><i>Whatever happened to "plutino"? A much more upbeat sound to it, though I guess it literally means "little Pluto", which leads to a question of whether Pluto can be a plutino.</i></p>

<p>"Plutino" is already being used to describe things in orbits similar to Pluto's (that is, in a 3:2 resonance with Neptune's orbit).  Pluto and Charon are both Plutinos, under this definition; "Xena" is not, since it's in a very different orbit.</p>

<p><i>"Minor planet" still appeals to me. We can corral off the nine as Major Planets, then everything discovered after Pluto becomes a minor planet, only of interest to s/t/a/m/p/ c/o/l/l/e/c/t/o/r/s/ astronomers. Teachers can breathe a sigh of relief that they only have to make one small change now, and not have to update their knowledge every year.</i></p>

<p>The problem is that there's a reasonable chance someone will discover something significantly larger than Pluto (twice the size, perhaps?), and then the can of worms gets opened up again.</p>
	 <p>Posted August 17, 2006 10:18 AM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #102 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p>So, the 10th planet was called 'Xena' because it used to be referred to as Planet X. Suuuure. If they ever find the 12th planet, I want to call it 'Zardoz'. </p>
	 <p>Posted August 17, 2006 10:44 AM by Serge</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 10:44:43 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #103 from Niall McAuley</title>
         <description>comment from Niall McAuley on 17.Aug.06</description>
         <content:encoded><p>Greg writes: <i>Their commute must totally suck!</i></p>

<p>Not at all. Since Pluto and Charon are mutually tidally locked, you can just catch a cable car. It's only 20,000 km.</p>
	 <p>Posted August 17, 2006 10:46 AM by Niall McAuley</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #104 from Xopher</title>
         <description>comment from Xopher on 17.Aug.06</description>
         <content:encoded><p>Caution though: Pay for a round trip on Pluto, not Charon. In fact don't ever pay Charon at all.  </p>

<p>Don't even fix a price.</p>
	 <p>Posted August 17, 2006 11:12 AM by Xopher</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 11:12:21 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #105 from Howard Peirce</title>
         <description>comment from Howard Peirce on 17.Aug.06</description>
         <content:encoded><p>I think the X in Planet X is a roman-numeral ten, not X-for-unknown. That would make the twelfth planet Planet XII. Pronounced "Planet She."</p>

<p>Isn't there some kind of crazy crackpot theory about a Planet X that occupies Earth's orbit, but 180 degrees from Earth, so it's always hidden by the sun? It seems to me it had something to do with Edgar Cayce or Velikovsky or something. Or maybe it was in a Kaiju movie. </p>
	 <p>Posted August 17, 2006 12:01 PM by Howard Peirce</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 12:01:42 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #106 from Niall McAuley</title>
         <description>comment from Niall McAuley on 17.Aug.06</description>
         <content:encoded><p>That's the plot of a Gerry Anderson produced TV movie called <i>Journey to the Far Side of the Sun</i>, or in some markets, <i>Doppelgänger</i>.</p>
	 <p>Posted August 17, 2006 12:27 PM by Niall McAuley</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 12:27:15 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #107 from Peter Erwin</title>
         <description>comment from Peter Erwin on 17.Aug.06</description>
         <content:encoded><p><i>Isn't there some kind of crazy crackpot theory about a Planet X that occupies Earth's orbit, but 180 degrees from Earth, so it's always hidden by the sun? It seems to me it had something to do with Edgar Cayce or Velikovsky or something. Or maybe it was in a Kaiju movie.</i></p>

<p>A version of that idea goes back to the Pythagoreans, though their picure of the solar system was <a href="http://en.wikipedia.org/wiki/Antichthon" rel="nofollow">a bit odd</a>.</p>

<p>The Wikipedia article on <a href="http://en.wikipedia.org/wiki/Counter-Earth" rel="nofollow">Counter-Earth</a> has some more fictional references.</p>
	 <p>Posted August 17, 2006 12:58 PM by Peter Erwin</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #108 from Bill Higgins-- Beam Jockey</title>
         <description>comment from Bill Higgins-- Beam Jockey on 17.Aug.06</description>
         <content:encoded><p>Malthus, <a href="http://news.bbc.co.uk/2/hi/science/nature/4596246.stm" rel="nofollow">I stand corrected</a>.</p>
	 <p>Posted August 17, 2006  1:40 PM by Bill Higgins-- Beam Jockey</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 13:40:45 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #109 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p>"Planet She", Howard? With Ursula Andress as its Supreme Ruler...</p>
	 <p>Posted August 17, 2006  3:00 PM by Serge</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 15:00:39 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #110 from John M. Ford</title>
         <description>comment from John M. Ford on 17.Aug.06</description>
         <content:encoded><p><i>"Planet She", Howard? With Ursula Andress as its Supreme Ruler...</i></p>

<p>Good heavens, no.  Helen Gahagan (Douglas).</p>

<p>"Bring the 'Nix-On' before me . . ."</p>
	 <p>Posted August 17, 2006  3:11 PM by John M. Ford</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 15:11:30 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #111 from Peter Erwin</title>
         <description>comment from Peter Erwin on 17.Aug.06</description>
         <content:encoded><p><a href="http://scottwesterfeld.com/blog/?p=162" rel="nofollow">Scott Westerfeld</a> and <a href="http://www.scalzi.com/whatever/004409.html" rel="nofollow">John Scalzi</a> have each fired off new rounds in their Pluto skirmish (no new videos, though).  My favorite quote from Westerfeld's post:<br />
<blockquote>Like a sweaty Joe McCarthy, the IAU brandished a list of 43 known plutons, and admitted they have a secret list of dozens more.</blockquote><br />
</p>
	 <p>Posted August 17, 2006  3:16 PM by Peter Erwin</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 15:16:45 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #112 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p>Mike, isn't there also a version of <i>She</i> done in the early Sixties with Ursula as She-Who-Must-Be-Obeyed? (No, not that one, not Mrs. Rumpole.)</p>
	 <p>Posted August 17, 2006  4:01 PM by Serge</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 16:01:54 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #113 from Stephen Frug</title>
         <description>comment from Stephen Frug on 17.Aug.06</description>
         <content:encoded><p><i>...Delany's future cultural historian whose thesis was that the Beatles were simply a late and watered down version of the Orpheus myth...</i></p>

<p>Anyone remember which book that was in?  Sounds like <i>The Einstein Intersection</i> but I don't remember that bit... (Actually, my most vivid memories of that book are the bits from Delany's journal.  Go figure.)</p>
	 <p>Posted August 17, 2006  4:27 PM by Stephen Frug</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #114 from Xopher</title>
         <description>comment from Xopher on 17.Aug.06</description>
         <content:encoded><p>Stephen, I think it was <i>Nova,</i> but I'm not sure.  </p>
	 <p>Posted August 17, 2006  4:36 PM by Xopher</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #115 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p>It sounds like <i>Nova</i> to me too.</p>
	 <p>Posted August 17, 2006  4:44 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #116 from John M. Ford</title>
         <description>comment from John M. Ford on 17.Aug.06</description>
         <content:encoded><p>Serge:  yes, Hammer remade <i>She</i> with Ursula Andress* and the usual Hammer suspects (Lee, Cushing, Andre Morell).  There have been a whole bunch of film versions, including several silent ones.</p>

<p>*"That magnificent Spoonerism." -- Pauline Kael</p>
	 <p>Posted August 17, 2006  5:27 PM by John M. Ford</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #117 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p>Spoonerism, Mike? I grew on that stuff. ("It shows, buddy.") Right now I'm going thru my first DVD set of <i>The Champions</i>, and I think Dennis Spooner was involved in that one too.</p>
	 <p>Posted August 17, 2006  5:32 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #118 from Edward Oleander</title>
         <description>comment from Edward Oleander on 17.Aug.06</description>
         <content:encoded><p><i>Isn't there some kind of crazy crackpot theory about a Planet X that occupies Earth's orbit, but 180 degrees from Earth, so it's always hidden by the sun? It seems to me it had something to do with Edgar Cayce or Velikovsky or something. Or maybe it was in a Kaiju movie.</i></p>

<p>Please don't forget John Norman's enlightening treatise on sexual liberation and gender equality, the <i>Gor</i> series. It's a fantasy of mine to someday see Norman and MZB duke it out on "Celebrity Death Match"...</p>
	 <p>Posted August 17, 2006  5:33 PM by Edward Oleander</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #119 from Serge</title>
         <description>comment from Serge on 17.Aug.06</description>
         <content:encoded><p>Say, in the original Flash Gordon comic-strip, didn't Ming the Merciless bring Mongo to the same orbit as the Earth, but on the other side of the Sun? How he could manage that trick AND have his minions fly around in dinky ships, I don't know.</p>
	 <p>Posted August 17, 2006  5:36 PM by Serge</p></content:encoded>
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         <title>Gather in the Hall of the Planets -- comment #120 from Fragano Ledgister</title>
         <description>comment from Fragano Ledgister on 17.Aug.06</description>
         <content:encoded><p>Serge: 'Arsula Undress'.</p>
	 <p>Posted August 17, 2006  7:15 PM by Fragano Ledgister</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 19:15:17 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #121 from Greg London</title>
         <description>comment from Greg London on 17.Aug.06</description>
         <content:encoded><p><i>How he could manage that trick AND have his minions fly around in dinky ships, I don't know.</i></p>

<p>X-wing fighters have hyperdrives.</p>
	 <p>Posted August 17, 2006  8:01 PM by Greg London</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 20:01:49 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #122 from Mez</title>
         <description>comment from Mez on 17.Aug.06</description>
         <content:encoded><p><a href="http://www.imdb.com/find?s=tt&q=Quatermain" rel="nofollow">Quatermain</a>, or <a href="http://www.imdb.com/find?s=tt&q=Quatermass" rel="nofollow">Quatermass</a>?</p>
	 <p>Posted August 17, 2006  8:33 PM by Mez</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 20:33:16 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #123 from Lila</title>
         <description>comment from Lila on 17.Aug.06</description>
         <content:encoded><p>Xopher, I just wanted you to know someone got the Chris DeBurgh reference.</p>
	 <p>Posted August 17, 2006  9:02 PM by Lila</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 21:02:34 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #124 from adamsj</title>
         <description>comment from adamsj on 17.Aug.06</description>
         <content:encoded><p>MZB?</p>
	 <p>Posted August 17, 2006  9:14 PM by adamsj</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 21:14:59 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #125 from Nancy C</title>
         <description>comment from Nancy C on 17.Aug.06</description>
         <content:encoded><p>Marion Zimmer Bradley; scifi/fantasy author.</p>
	 <p>Posted August 17, 2006  9:19 PM by Nancy C</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 21:19:11 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #126 from CHip</title>
         <description>comment from CHip on 17.Aug.06</description>
         <content:encoded><p>JMF: actually, they were seals (no, not "Giant Space Seals with Photon Flippers)....</p>

<p>Edward: <i>The Decomposers, or, Rivets Has Risen from the Grave</i> ((c) Keller & Anderson, 1979) includes a would-be Free Companion, steel drawn, chasing "Norman Johnson".</p>

<p>all: definitely <i>The Einstein Intersection</i>; <i>Nova</i> doesn't do any looking-backward \and/ doesn't have any journal entries.</p>
	 <p>Posted August 17, 2006  9:42 PM by CHip</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 21:42:11 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #127 from Howard Peirce</title>
         <description>comment from Howard Peirce on 17.Aug.06</description>
         <content:encoded><p>Mez: Assuming you're referring to my BBC radio link away up above, I clearly meant to type Quatermass, and got going too fast. The main protagonist is a gruff-but-fair scientist with his two young graduate students. It's a very entertaining serial with An Important Message; if you're not familiar with old-school SF on the radio, I highly recommend it. Lately I've been getting almost all my science fiction in radio form.</p>

<p>I was pulled away from the Internet for some hours and missed the fun since my last post. This is why I love Making Light -- anywhere else I could write "Planet She" and get blank, uncomprehending stares in response. Thanks, all, for running with it. It made my evening.</p>

<p>Peter, thanks for the Counter-Earth link. For some reason, I still have this tenuous mental connection between Planet X and some <i>fin de siècle</i> "spiritualist" movement. Blavatsky? Gurdjieff? Could just be a stray synapse, I suppose.</p>
	 <p>Posted August 17, 2006 10:39 PM by Howard Peirce</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 22:39:38 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #128 from Edward Oleander</title>
         <description>comment from Edward Oleander on 17.Aug.06</description>
         <content:encoded><p>MZB was Marion Zimmer Bradley, a writer with strong feminist leanings who wrote the wonderful Darkover series. Sample a few books from <i>Gor</i> and <i>Darkover</i> and you'll see why the Deathmatch would have been perfect. I'm pretty sure that right up to her last day, MZB couldv'e kicked Norman's narrow ass. Both series should be required reading for a Master's in Gender Studies...</p>
	 <p>Posted August 17, 2006 10:43 PM by Edward Oleander</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 22:43:52 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #129 from Edward Oleander</title>
         <description>comment from Edward Oleander on 17.Aug.06</description>
         <content:encoded><p>One point I saw addressed only obliquely was the issue of planets around other stars. We should not develop our classification system based only on our own solar system. We have found over 130 extra-solar planets already, and that number will soon explode exponentially. Push our solar system out of your mind and imagine how you would classify these new discoveries. Would Pluto be a planet if it was circling some other star as an only satellite? I think so, so that makes it a planet here too. Ceres? You bet, so it's in as well. How about Charon if it was alone? Again, I think most scientists would grant it planetary status then. </p>

<p>The CoG arguement is an excellent litmus test for binary vs. planet/moon systems, as it can be applied everywhere in the universe. The size criteria is arbitrary, so thus loses some legitimacy, but the threshold of gravitationally-based spherification is a universal standard that makes allowances for density and composition, and thus wins my vote.</p>

<p>I also want to throw in a vote for the term 'planetoid' for the ones too small (if size is to remain a criteria) or too gravitationally weak to make the cut. Pluton and the other 'Plutes' conjure up inevitable comparisons with Pluto, which detracts from their uniqueness, and thus should be avoided.  </p>
	 <p>Posted August 17, 2006 11:03 PM by Edward Oleander</p></content:encoded>
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         <pubDate>Thu, 17 Aug 2006 23:03:43 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #130 from Fragano Ledgister</title>
         <description>comment from Fragano Ledgister on 17.Aug.06</description>
         <content:encoded><p>I seem to recall reading that Randall Garrett wrote a parody called 'Free Amazons of Gor', setting independent Darkovan women in John Norman's world.</p>
	 <p>Posted August 17, 2006 11:15 PM by Fragano Ledgister</p></content:encoded>
         <link>http://nielsenhayden.com/makinglight/archives/007874.html#139057</link>
         <guid isPermaLink="true">http://nielsenhayden.com/makinglight/archives/007874.html#139057</guid>
         <pubDate>Thu, 17 Aug 2006 23:15:28 -0500</pubDate>
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         <title>Gather in the Hall of the Planets -- comment #131 from Xopher</title>
         <description>comment from Xopher on 17.Aug.06</description>
         <content:encoded><p>Lila, thank you.  It's also an ancient mythology reference, one DeBurgh was using.</p>
	 <p>Posted August 17, 2006 11:22 PM by Xopher</p></content:encoded>
         <link>http://nielsenhayden.com/makinglight/archives/007874.html#139058</link>
         <guid isPermaLink="true">http://nielsenhayden.com/makinglight/archives/007874.html#139058</guid>
         <pubDate>Thu, 17 Aug 2006 23:22:20 -0500</pubDate>
     