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天秤座23b

天秤座23 b
太阳系外行星 太阳系外行星列表

艺术家笔下的天秤座23 b,是一颗气体巨星。
母恒星
母恒星 天秤座 23
星座 天秤座
距离83.7 ly (25.6 pc)
轨道参数
半长轴 (a) 0.81 ± 0.02 AU
轨道离心率 (e) 0.233 ± 0.002
公转周期 (P) 258.19 ± 0.07 d (0.7069 y)
近星点时间 (T0) 2,450,331.7 ± 2.2 JD
半振幅 (K) 49.52 ± 0.57 m/s
物理性质
最小质量(m sin i)1.59 ± 0.02 MJ
发现
发现时间 1999年11月14日
发现者 Vogt 等人
发现方法 径向速度
发现地点 凯克天文台
发表论文 Published
其他名称
HD 134987 b
数据库参考
太阳系外行星
百科全书
data
SIMBADdata


天秤座23b是一颗围绕天秤座 23运转的类木行星,于1999年被发现。其轨道位于适居带内,表面温度则接近于金星

该行星的质量下限为1.6倍木星质量,质量上限为34倍木星质量,表明其也可能是一颗亮度极低的褐矮星。天秤座23b的轨道与其母星的平均距离为0.82天文单位,如果在太阳系中,则将位于金星和地球轨道之间。

参考文献

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天秤座23b
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