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HR 5553
HR 5553 is a binary star system located thirty-eight light-years away, in the constellation Boötes. The combined spectrum of the pair matches that of a K-type main sequence star with a stellar classification of K0 V. The two stars orbit each other with a period of 125 days and a large eccentricity of 0.51.〔 An infrared excess has been detected around this star, most likely indicating the presence of a circumstellar disk at a radius of 34.2 AU. The temperature of this dust is 40 K.〔 The estimated mass of the dust is 0.0002 times the mass of the Earth.〔 ==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「HR 5553」の詳細全文を読む
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