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HD 216770 b is an extrasolar planet orbiting the star HD 216770. It has a mass about two thirds that of Jupiter, largest planet in our Solar system. But unlike the gas giants in the Solar system, it orbits in a very eccentric orbit around the star. The mean distance from the star is slightly larger than Mercury's, and it completes one orbit around the star in every 118 days.〔 ==See also== * HD 10647 b * HD 108874 b * HD 111232 b * HD 142415 b * HD 169830 c * HD 41004 Ab * HD 65216 b 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 216770 b」の詳細全文を読む スポンサード リンク
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