英仙座S

英仙座S
S Persei
觀測資料
曆元 J2000
星座 英仙座
星官
赤經 21h 09m 31.7819s
赤緯 +68° 29' 27.206"'
視星等（V） 9.23
特性
光谱分类M3Iaev[1]-M4.5I[2]
B−V 色指数2.65[2]
变星类型半规则变星[1]
天体测定
徑向速度 (Rv)-39.71[1] km/s
自行 (μ) 赤经：-2.70[1] mas/yr
赤纬：-0.29[1] mas/yr
视差 (π)1.66 mas
距离8,200 ly
(2,510 pc)
绝对星等 (MV)-6.36
詳細資料
半徑780-1,230[2] R☉
亮度88,000 - 221,000[2] L☉
溫度~3,500[2] K
其他命名

英仙座S(S Persei)是一颗位于英仙座雙星團中的NGC 869北部的一颗红超巨星或特超巨星。它是一颗半规则变星。

英仙座S的半径是太阳半径的1000倍。

参考资料

  1. ^ 1.0 1.1 1.2 1.3 1.4 SIMBAD basic query result: VY Canis Majoris. SIMBAD, Centre de Données astronomiques de Strasbourg. [May 20, 2012]. （原始内容存档于2019-07-22）. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 Emily M. Levesque, Philip Massey, K. A. G. Olsen, Bertrand Plez, Eric Josselin, Andre Maeder, and Georges Meynet. The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought. The Astrophysical Journal. August 2005, 628 (2): 973–985. Bibcode:2005ApJ...628..973L. arXiv:astro-ph/0504337 可免费查阅. doi:10.1086/430901. 

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