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HAT-P-11, also designated GSC 03561-02092, is an orange dwarf metal rich star about 123 light-years away in the constellation Cygnus. This star is notable for its relatively large rate of proper motion. The magnitude of this star is about 9, which means it is not visible to the naked eye but can be seen with a medium-sized amateur telescope on a clear dark night. The age of this star is about 6.5 billion years.〔 The star has active latitudes that generate starspots.〔 ==Planetary system== An extrasolar planet, was discovered by transit method of the HATNet Project, believed to be a little larger than Neptune. That planet orbits out of alignment from the star's spin axis. The system is oblique at 100°.〔 This star system was within the field of view of the Kepler Mission planet-hunter spacecraft.〔 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「HAT-P-11」の詳細全文を読む スポンサード リンク
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