Tenth planet (disambiguation)
From Wikipedia, the free encyclopedia
Tenth planet is a term formerly applied to possible planets beyond Neptune, before the reclassification of Pluto. It may also refer to:
- 2060 Chiron, claimed by some to be the tenth planet upon discovery
- 15760 Albion, then nicknamed "Smiley" and hailed as the tenth planet
- Eris (dwarf planet), referred to by some to be the tenth planet after discovery, up to the reclassification of Pluto
