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As reported on the BBC News Online website
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Yeah, I think if the IAU had taken that simple approach, there would have been a lot less distress caused to the Pluto enthusiasts! We could still count 8 major planets in the solar system, but Pluto would still be considered a planet. I predict that's how the terms will end up being applied in the research domain.
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But my contention is that for many researchers in the field of planetology, that question has always carried the implicit modifier: how many major planets are there? Kind of like the statement that none of the stars are bright enough to be seen in broad daylight.
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Swift's BAUT Dictionary
Plutoing - Ploo-to-ing (verb) - To endlessly debate the classification of the astronomical body Pluto. See "One-equals-infinite-ninesing" ![]()
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At night the stars put on a show for free (Carole King) One Earth, One Sky - IYA 2009 All moderation in purple |
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Are you talking about the professional definition of a planet? If you think that has been clear for a hundred years, you'd have to go with the one that includes minor planets as planets. I would tend to think even the professional definition has always been murky on that, depending on who you ask. I would rather believe that the professional definition (as distinguished from popular media) has always included minor planets as planets, but if that were true the IAU would have gone a different way.
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POSTERS AND READERS
Pluto lost status of planet because it is in the team of killer planets... www.cosmogeology.ge/chapter-11.htm |
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Perhaps you should post this to that forum...
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"I have this theory that the Apollo missions were faked when NASA found out that general relativity was wrong because the Earth was expanding due to the Sun's iron core being influenced by magnetic waves from the electric universe after being perturbed by Planet X and thereby causing global warming. Where should I start a thread about this?" ~ ToSeek "Those are the people that wonder how a thermos knows whether to keep something hot or keep something cold." ~ NeoWatcher |
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Plus I got interupted with this in a PM
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Well as you know, I feel the IAU dropped the ball and did something that is true to the traditionally correct nomenclature of neither planetology nor astronomy in general, caving instead to popular pressure to make "planet" just mean the ones you find in children's books.
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You guys are referring explicitly to "Pluto", I am talking in the more general sense of the definition of "planet". The motivation for saying minor planets are not planets was simply to avoid having lots of planets in our solar system-- how was that not caving to popular opinion? To me the current definition is just as if they had taken the current definitions of "hot star" and "cool star" and said that since most of what we see in the sky are hot stars, and the Sun isn't counted as a star in most people's lingo, this means that cool stars are not stars, they are their own separate class of object. That'll sure cut down on the number of stars people have to keep track of! But the whole point of categorizing things is to see similarities, and the similarity between Pluto, Titan, and Earth are why they are all a type of something. What something? There is no other word than planet for that similarity. This will be patently obvious when we start exploring their surfaces with robots, and the terminology will return to what makes sense.
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Not if they follow the First Rule of Acquisition:
"Once you have their money, never give it back." |
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