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Sunday, September 17, 2006

A Planet or Not?

A piece of news which caused a lot of astronomers to talk about is the Pluto nightmare. It’s a very controversial one because of the definition of a word “Planet”. It certainly caused a lot of discussion at the IAU General Assembly and only a handful 4% of the total member has cast a vote, I don’t know why but are they too busy or some other reasons for that? Now many of them saying they are against such a declaration and the definition has made the matter worse. My thought – Do Not use the word “dwarf”, it worries the people who respects the history and the average people understanding. Let’s call all of them planets. Anything which is rounded and orbiting the Sun is called Planet. Instead we have a new definition: Eight-Biggest Planets in the Solar System, it doesn’t include Pluto, because we’ve found a planet that is bigger than Pluto. Remember the current planet at the ninth place (UB313 or Eris) could be challenged by some other Kuiper-Belt objects in the future, we are also very unlikely to find a object bigger than the eight planets. My solution makes every planet (called) a planet and not demoting them by any means.