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Castor Moving Group : ウィキペディア英語版 | Castor Moving Group The Castor Moving Group is a moving group of stars sharing similar velocities. The stars that have been identified as part of the group include Castor, Fomalhaut, Vega, α Cephei and α Librae. While the reported group members are young (typically with ages of hundreds of millions of years), recent results suggest that the velocity differences amongst the moving group stars are too large for them to have possibly shared a common origin. ==Discovery and constituents== The moving group was first proposed by J. P. Anosova, and V. V. Orlov in 1990.〔 Anosova and Orlov originally proposed 15 members. In 1999, Barrado y Navascues presented a membership list of 16 stars, and estimated a group age of 200 million years.〔 The membership of the group has not been well-established and varies quite a bit amongst studies.
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「Castor Moving Group」の詳細全文を読む
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