What Shall We Call Her?

It’s bigger than Pluto, and for a small part of its 560 year orbit around the Sun is actually closer to us than Pluto is. It has pretty much as much right to be called a planet. It was just discovered 70 years later, that’s all. One consequence of the discovery was that Pluto was officially demoted to be merely a “dwarf planet,” along with the new object (and with the large asteroid Ceres).


Solar System Special Technique Great Distance California Institute International Committee 
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© Springer Science+Business Media, LLC 2008

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