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Counter-Earth, a planet situated on the other side of the Sun from that of the Earth. Fifth planet (hypothetical), historical speculation about a planet between the orbits of Mars and Jupiter. Phaeton, a planet situated between the orbits of Mars and Jupiter whose destruction supposedly led to the formation of the asteroid belt. This hypothesis ...
Science fiction bibliographers E. F. Bleiler and Richard Bleiler, in the 1998 reference work Science-Fiction: The Gernsback Years, list various imaginary constituents of the pre-modern "science-fiction Solar System". Among these are planets between Venus and Earth, planets on the inside of a hollow Earth, and a planet "behind the Earth". [16]
This list of exoplanets discovered in 2025 is a list of confirmed exoplanets that were first reported in 2025. For exoplanets detected only by radial velocity , the listed value for mass is a lower limit.
For a list of geophysical planets in the Solar System, see: List of gravitationally rounded objects of the Solar System This also includes a list of the eight planets according to the IAU definition. For a list of objects in the Solar System once but no longer generally considered planets, see: List of former planets; For a list of objects in ...
Only 12 light years from Earth, Tau Ceti is the closest single star similar to the Sun and an all-time favorite in sci-fi stories. Habitable worlds orbiting Tau Ceti were destinations of fictional ...
A planet that directly orbits a black hole. Carbon planet: A terrestrial planet composed primarily of carbon, rather than silicon. Chthonian planet: A hot Jupiter whose outer layers have been completely stripped off by its parent star. Chlorine planet: A planet with significant amounts of free chlorine or hydrochloric acid. [2] Coreless planet
Planet c is possibly a potentially habitable Super-Earth but is probably too hot or massive. [55] [56] Mu Arae: Ara: 17 h 44 m 08.70 s: −51° 50′ 02.6″ 5.15: 51: G3IV-V: 1.077: 5704: 6.413: 4: Planet Quijote orbits in the circumstellar habitable zone. However, it is a gas giant, so it itself is uninhabitable although a large moon orbiting ...
العربية; Azərbaycanca; Беларуская; Беларуская (тарашкевіца) Български; Català; Чӑвашла; Čeština ...