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Lambda Cassiopeiae : ウィキペディア英語版 | Lambda Cassiopeiae
Lambda Cassiopeiae (λ Cas, λ Cassiopeiae) is a binary star in the constellation Cassiopeia. The system has a combined apparent magnitude of +4.74 and is approximately 380 light years from Earth.〔 Both components are blue-white B-type main sequence dwarfs. The brighter, λ Cassiopeiae A, has an apparent magnitude of +5.5, while its companion, λ Cassiopeiae B, has an apparent magnitude of +5.8. The two stars are separated by 0.6 arcseconds and complete one orbit around their common centre of mass once every 640 years. == 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「Lambda Cassiopeiae」の詳細全文を読む
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