Tenth planet (disambiguation)

Tenth planet is a term formerly applied to possible planets beyond Neptune, before the reclassification of Pluto. It may also refer to:

• The Tenth Planet, the Doctor Who serial
• The Tenth Planet, a 1984 novel by Leo Melamed
• The Tenth Planet, a 1952 Hollywood Star Playhouse radio play starring Joseph Cotten
• 3 Juno, an asteroid that was the tenth object to be identified as a planet before the asteroids were demoted
• 2060 Chiron, claimed by some to be the tenth planet upon discovery
• Charon (moon), regarded together with Pluto as a binary planet
• 15760 Albion, then nicknamed "Smiley" and hailed as the tenth planet
• Eris (dwarf planet), which came very close to being considered the tenth planet, after Pluto
• 50000 Quaoar, the biggest object found since Pluto and Charon
• 90377 Sedna, a large minor planet
• 10th Planet Jiu-Jitsu, non-traditional system of Brazilian Jiu-Jitsu