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HD 215497
HD 215497 is a star located approximately 142 light-years away in the constellation of Tucana. It is a K3V star with the characteristics very similar to the Sun. In 2009, two extrasolar planets were discovered orbiting the star.〔 == Planetary system ==
Announced in 2009, two extrasolar planets were discovered to be orbiting the star. Both planets are less massive than Jupiter. The inner planet HD 215497 b orbits very close to the star and is termed a “hot super-Earth”. The outer planet HD 215497 c is Saturn-sized and orbits a little bit further from the star as the Earth, at around 1.282 AU.〔
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「HD 215497」の詳細全文を読む
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