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HD 87883

HD 87883
观测资料
历元 J2000.0
星座 小狮座
星官
赤经 10h 08m 43.1395s
赤纬 +34° 14′ 32.135″
视星等(V) 7.56
特性
光谱分类K0V
视星等 (B)8.53
视星等 (J)5.839
视星等 (H)5.441
视星等 (K)5.314
B−V 色指数0.97
天体测定
径向速度 (Rv)+9.1 km/s
自行 (μ) 赤经:–64.48 mas/yr
赤纬:–60.28 mas/yr
视差 (π)55.37 ± 0.94 mas
距离59 ± 1 ly
(18.1 ± 0.3 pc)
绝对星等 (MV)6.28
详细资料
质量0.82 ± 0.04 M
半径0.76 ± 0.03 R
表面重力 (log g)4.47
亮度0.32 L
温度4980 ± 44 K
金属量0.093 ± 0.04
年龄9.8 × 109
其他命名
BD+34°2089, HIP 49699, PPM 75021, SAO 61890
参考数据库
SIMBAD资料
系外行星数据库英语Exoplanet Archive资料
ARICNS资料
系外行星百科资料

HD 87883是一颗位于小狮座光谱 K 型橙矮星,视星等8等,距离地球约59光年,年龄约98亿年。2009年8月在该恒星旁以径向速度法发现一颗太阳系外行星[1]

HD 87883的行星系[1]
成员
(依恒星距离)
质量 半长轴
(AU)
轨道周期
()
离心率 倾角 半径
b ≥1.78 ± 0.34 MJ 3.6 ± 0.08 2754 ± 87 0.53 ± 0.12

参见

参考资料

  1. ^ 1.0 1.1 Fischer, Debra; et al. Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory. The Astrophysical Journal. 2009, 703 (2): 1545–1556 [2013-04-21]. Bibcode:2009ApJ...703.1545F. arXiv:0908.1596可免费查阅. doi:10.1088/0004-637X/703/2/1545. (原始内容存档于2020-01-03). 


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HD 87883
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