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Kepler-23b
Kepler-23b is an exoplanet orbiting Kepler-23, located in the Cygnus constellation. The exoplanet was discovered with the Kepler space telescope in January 2012.〔(【引用サイトリンク】url=http://exoplanet.eu/catalog/kepler-23_b/ )〕 The planet is bigger than Earth, and its orbit is very close to its parent star.〔(【引用サイトリンク】url=http://kepler.nasa.gov/Mission/discoveries/kepler23b/ )〕 Orbital periods are 7.1 days and it presents a semi-major axis 0.099 AU.〔 ==References==
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「Kepler-23b」の詳細全文を読む
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