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尾宿八

尾宿八 A/B/C
观测资料
历元 J2000.0
星座 天蝎座
星官 尾宿青龙
赤经 17h 33m 36.6s / 42.6s / 32.5s [1]
赤纬 -37° 06′ 13″ /
-37° 06′ 44″ /
-37° 04′ 52″ [1]
视星等(V) 1.62 / 14.9 / 12.0 [1][2]
特性
光谱分类B1.5-2 IV+ (A)
U−B 色指数-0.91 (A)
B−V 色指数-0.23 (A)
变星类型仙王座β变星 (A)
天体测定
径向速度 (Rv)-3 km/s
自行 (μ) 赤经:-8.90 mas/yr
赤纬:-29.95 mas/yr
视差 (π)4.64 ± 0.90 mas
距离approx. 700 ly
(approx. 220 pc)
绝对星等 (MV)-5
其他命名
Shaula, 35 Scorpii, 35 Sco, HR 6527, CD -37 11673, HD 158926,SAO 208954, FK5 652, HIP 85927, CCDM J17336-3706A/B/C.

尾宿八(λ Sco / 天蝎座λ) 是天蝎座的第二亮星,也是夜空中最亮的星之一。虽然尾宿八是天蝎座第二亮星,但其在拜耳命名法中被命名为λ。其英文俗名Shaula来自阿拉伯语الشولاء al-šawlā´,意为“翘起的尾巴”,因为其形成了蝎子(天蝎座)的尾巴。

参考资料

[编辑]
  1. ^ 1.0 1.1 1.2 SIMBAD query result: lam Sco -- Variable Star of beta Cep type. Centre de Données astronomiques de Strasbourg. [2010-05-22]. (原始内容存档于2016-03-17). 
  2. ^ Reed, B. Cameron. Catalog of Galactic OB Stars. The Astronomical Journal. 2003, 125 (5): 2531–2533 [2010-05-22]. Bibcode:2003AJ....125.2531R. doi:10.1086/374771. 
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尾宿八
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