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Iota Aquarii : ウィキペディア英語版 | Iota Aquarii
Iota Aquarii (ι Aqr, ι Aquarii) is the Bayer designation for a star in the equatorial constellation of Aquarius. It is visible to the naked eye with an apparent magnitude of +4.279.〔 based upon parallax measurements made during the Hipparcos mission, the distance to this star is around .〔 The spectrum of this star fits a stellar classification of B8 V,〔 showing that this is a B-type main sequence star. It has 2.7〔 times the radius of the Sun and is spinning rapidly with a projected rotational velocity of 135 km/s.〔 A 2010 infrared search for companions around this star was unsuccessful.〔 ==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「Iota Aquarii」の詳細全文を読む
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