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A planet from Star Trek.

A planet is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, but is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.

Planets are generally divided into two main types: large low-density giant planets, and smaller rocky terrestrials. Under IAU definitions, there are eight planets in the Solar System. In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four giant planets, Jupiter, Saturn, Uranus, and Neptune. Six of the planets are orbited by one or more natural satellites.

The idea of planets has evolved over its history, from the divine lights of antiquity to the earthly objects of the scientific age. The concept has expanded to include worlds not only in the Solar System, but in hundreds of other extrasolar systems. The ambiguities inherent in defining planets have led to much scientific controversy.

Solar system planets

Fictional planets

Name Film/Franchise
Acheron Aliens film series
Ahch-To Star Wars
Bespin Star Wars
Bolovax Vik DC Universe
D'Qar Star Wars
Daxam DC Universe
Drakulon Vampirella
Fiorina 161 Aliens film series
Gentes Star Wars
H'lven DC Universe
Hak'tyl Stargate
Hoth Star Wars
Jakku Star Wars
Kakaranthara Marvel Universe
Malcassairo Doctor Who
Mon Cala Star Wars
Mondas Doctor Who
Oa DC Universe
Planet T-37X Marvel Universe
Planet X Godzilla film series
Tatooine Star Wars
Thanagar DC Universe
Vistula Buck Rogers in the 25th Century
Xudar DC Universe

See also Edit