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WASP-4 is a G-type main sequence star approximately 1,000 light-years away in the constellation of Phoenix.〔, entry, SIMBAD. Accessed on line June 19, 2008.〕 ==Planetary system== In 2007, an extrasolar planet, WASP-4b, was discovered orbiting this star. 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「WASP-4」の詳細全文を読む スポンサード リンク
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