List of hypothetical Solar System objects
Hypothetical planets are planets that are inferred to exist based on scientific evidence, but have yet to be proven or have been disproven. There are many worlds which have been proposed to explain apparent irregularities in orbits, or other observed effects within or outside our solar system. For further information, see:
Hypothetical planets
- Vulcan (planet)
- Planet X
- Theia (planet)
- Tenth planet
- Hypothetical solar system planets: planets thought or once thought to exist within our solar system
Hypothetical minor planets
- Vulcanoid asteroid: field of minor planets thought to exist within the orbit of Mercury. Named for Vulcan
- Kuiper cliff: sudden dropoff in the number of [[Kuiper belt objects observed beyond 55 AU. Possibly caused by the gravity of a large, unseen object.
Hypothetical natural satellites
- Neith, a purported moon of Venus, now known not to exist
- Chiron, a disproven moon of Saturn
- Themis, a moon of Saturn, supposedly discovered in 1905, but later shown not to exist after all
Hypothetical extrasolar planets
- hypothetical extrasolar planets: planets thought or once thought to exist outside our solar system
- list of unconfirmed exoplanets: incomplete list of all unconfirmed extrasolar planets
Hypothetical stars
See also
- Extrasolar planet
- Category:Fictional planets
- Giant impact theory
- Globus Cassus
- Hypothetical Solar System bodies
- Planets in science fiction
- Tom Van Flandern
- PlanetQuest