Fifth planet may refer to:
Astronomy
edit- Jupiter, fifth planet from the Sun in our Solar System
- Fifth planet (hypothetical), any of various hypothetical planets thought to have existed
- Planet V, 2002 scientific proposal for a destroyed fifth planet
- Mars, fifth planet from Earth in the Ptolemaic geocentric model
- Ceres (dwarf planet), dwarf planet between Mars and Jupiter in the asteroid belt
Fiction
edit- Fifth Planet (novel), science fiction novel by Fred and Geoffrey Hoyle
See also
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This disambiguation page lists articles associated with the title Fifth planet.
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