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HD 156274

HD 156274
观测资料
历元 J2000.0
星座 天坛座[1][2]
星官
赤经 17h 19m 3.2s[1][2]
赤纬 -46° 38′ 2″[1][2]
视星等(V) 5.48[1][2]
特性
光谱分类G8-K0V[1][2]
U−B 色指数0.38[1][2]
B−V 色指数0.8[1][2]
R−I 色指数0.46[1][2]
天体测定
径向速度 (Rv)0.38 km/s
自行 (μ) 赤经:23 mas/yr
赤纬:- mas/yr
视差 (π)113.751 ± 0.27 mas
距离28.67 ± 0.07 ly
(8.79 ± 0.02 pc)
轨道[3]
伴星41 G. Ara B
绕行周期 (P)953 yr
半长轴 (a)13.341"
偏心率 (e)0.825
倾斜角 (i)40.5°
升交点黄经 (Ω)137.3°
近心点 历元 (T)1907.5
近心点幅角 (ω)
(secondary)
329.7°
其他命名
CD-4611370,SAO 227816,HD 156274,HR 6416
参考数据库
SIMBAD资料

HD 156274,又名CD-4611370SAO 227816HR 6416,是一个位于天坛座的恒星系统[1][2],视星等为5.48,位于银经342.29,银纬-5.26,其B1900.0坐标为赤经17h 11m 27.7s,赤纬-46° -5.26′ 55″。

参考文献

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Pulsating variable Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2012-07-13]. (原始内容存档于2019-06-06). 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 VizieR Detailed Page. [2012-07-13]. (原始内容存档于2016-03-05). 
  3. ^ Entry 171903.85-463810.1, Sixth Catalog of Orbits of Visual Binary Stars (United States Naval Observatory), [2016-06-07], (原始内容存档于2017-08-01). 


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HD 156274
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