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Theta Virginis : ウィキペディア英語版 | Theta Virginis
Theta Virginis (θ Vir, θ Virginis) is a star system in the constellation Virgo. It is approximately 415 light years from Earth. The primary component, Theta Virginis A, is a white A-type subgiant with an apparent magnitude of +4.38. It is a spectroscopic binary whose components have magnitudes +4.6 and +6.8. The system has an orbital period of about 14 years. The separation of the components is 0.48 arcseconds. The binary star is orbited by the 9th magnitude A- or F-type Theta Virginis B, which is 7.1 arcseconds distant. A fourth component, Theta Virginis C, is 69.6 arcseconds away and has an apparent magnitude of 10.4.
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「Theta Virginis」の詳細全文を読む
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