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38 Aquarii
38 Aquarii (e Aquarii, e Aqr, 38 Aqr) is the Flamsteed designation for a star in the equatorial constellation of Aquarius. It is a faint star but visible to the naked eye, with an apparent visual magnitude of +5.43.〔 The distance to this star, based upon parallax measurements, is around .〔 The spectrum of 38 Aquarii matches a stellar classification of B5 III.〔 A luminosity class of III indicates that this is an evolved giant star. It has 5.6〔 times the radius of the Sun and is spinning with a projected rotational velocity of 20 km/s.〔 The outer atmosphere of the star has a blue-white glow from an effective temperature of 13,860 K.〔 ==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「38 Aquarii」の詳細全文を読む
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