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''Extrasolar'' (From extra, Latin for outside or beyond, and solar, Latin for the Sun) is a term applied to any object that exists outside the Solar System. It is not applied to stars, or any other celestial object that is larger than a star or the Solar System, such as a galaxy. It is only used for objects (aside from stars) which are also found in the Solar System. The terms for extrasolar examples of Solar System bodies are: * Extrasolar planet, also called an "exoplanet" * Extrasolar moon, also called an "exomoon" * Exocomet, an extrasolar comet * Extrasolar asteroid, with one identified as of 2013, orbiting GD 61 Some Solar System object classes, such as minor planets, dwarf planets and Trans-Neptunian objects have not been detected outside the Solar System. ==See also== * Extraterrestrial, referring to objects or phenomena existing within the Solar System, but not on Earth * Extragalactic astronomy, the study of objects outside the Milky Way Galaxy 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「extrasolar」の詳細全文を読む スポンサード リンク
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