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Kappa Cancri : ウィキペディア英語版 | Kappa Cancri
Kappa Cancri (κ Cnc, κ Cancri) is a star in the constellation Cancer. κ Cancri is a blue-white B-type giant with a mean apparent magnitude of +5.23. It is approximately 484 light years from Earth. It is classified as an Alpha2 Canum Venaticorum type variable star and its brightness varies from magnitude +5.22 to +5.27 with a period of 5 days. This is a spectroscopic binary star system with an orbital period of 6.39 days an eccentricity of 0.14. The primary component has 4.5 times the mass of the Sun, 5 times the Sun's radius, and an effective temperature of 13,200 K. The secondary is a smaller star with 2.1 times the mass and 2.4 times the radius of the Sun, having an effective temperature of 8,500 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「Kappa Cancri」の詳細全文を読む
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