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).
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© 2008 Springer Science+Business Media, LLC
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(2008). What Shall We Call Her?. In: Ice, Rock, and Beauty. Springer, New York, NY. https://doi.org/10.1007/978-0-387-73103-2_41
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DOI: https://doi.org/10.1007/978-0-387-73103-2_41
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