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18 Delphini
18 Delphini or 18 Del is a yellow giant star approximately 238 light-years away in the constellation of Delphinus. , an extrasolar planet was confirmed to be orbiting the star. == Planetary system ==
On February 19, 2008, a 10.3 Jupiter mass extrasolar planet (named 18 Delphini b) is found orbiting around the star.〔 The planet and its host star is one of the planetary systems selected by the International Astronomical Union as part of their public process for giving proper names to exoplanets and their host star (where no proper name already exists).〔(NameExoWorlds: An IAU Worldwide Contest to Name Exoplanets and their Host Stars ). IAU.org. 9 July 2014〕〔(NameExoWorlds ).〕 The process involves public nomination and voting for the new names, and the IAU plans to announce the new names in mid-November 2015.〔(NameExoWorlds ).〕
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「18 Delphini」の詳細全文を読む
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