PLUTOID: In 2006, the International Astronomical Union (IAU) announced that Pluto is not a planet. So what is it? After two years of careful deliberation, the IAU has an answer: Pluto is a plutoid. The IAU offers "the plutoid" as a serious new category of celestial body.]
http://www.iau.org/public_press/news/release/iau0804/
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