Ninth planet (disambiguation)
Ninth planet is a concept relating to planets beyond Neptune after the reclassification of Pluto.
Ninth planet or Planet Nine may also refer to:
- Planet Nine, a hypothetical large ninth planet in the Solar System
- Planet 9 (record label)
See also
- 2 Pallas, an asteroid, the ninth planet in chronological discovery order from 1802 until its reclassification as a minor planet in the 1850s
- Jupiter, considered the ninth-closest planet to the Sun from 1807 to 1845 as a result of the discovery of minor planets
- Neptune, the ninth-closest planet to the Sun from 1979 to 1999 (while Pluto was closer to the Sun)
- Pluto, the ninth planet from its discovery in 1930 until its reclassification as a dwarf planet in 2006
- The Secret of the Ninth Planet, a science fiction novel by Donald A. Wollheim
- First planet (disambiguation)
- Second planet (disambiguation)
- Third planet (disambiguation)
- Fourth planet (disambiguation)
- Fifth planet (disambiguation)
- Sixth planet (disambiguation)
- Seventh planet (disambiguation)
- Eighth planet (disambiguation)
- Tenth planet (disambiguation)
- Eleventh planet
- Twelfth planet (disambiguation)
- Planet X (disambiguation)
This disambiguation page lists articles associated with the title Ninth planet.
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