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18 Delphini b : ウィキペディア英語版 | 18 Delphini b 18 Delphini b or 18 Del b is a very massive and dense planet approximately 238 light-years away in the constellation of Delphinus. The planet orbits the yellow giant star 18 Delphini. The planet has a minimum mass of and a period of 993 days. This planet was discovered on February 19, 2008 by Sato.〔 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 ).〕 == See also ==
* 41 Lyncis b * Xi Aquilae b
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