View source for Ninth planet (disambiguation)

{{wikt|Planet Nine|Planet 9}}
'''[[Ninth planet|<span lang="cs">Ninth</span> planet]]''' is a concept related to planets beyond Neptune.
'''Ninth planet''' or '''Planet Nine''' may also refer to:
==Astronomy==
* [[Neptune]], sometimes considered the ninth planet from 1979–1999 when Pluto was classified as a planet and was temporarily closer to the Sun than Neptune
* [[Planet Nine]], hypothetical ninth planet in the outer Solar System
* [[Pluto]], considered the ninth planet from its 1930 discovery until it was reclassified as a dwarf planet in 2006 (except 1979–1999, see above)
==Music==
* [[Planet 9 (record label)]], founded by Mya
==See also==
* [[Tenth planet (disambiguation)]]
* [[Eleventh planet]]
* [[Twelfth planet (disambiguation)]]
* [[Planet X (disambiguation)]]
{{Disambiguation}}