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HD 154345 b

HD 154345 b
太阳系外行星 太阳系外行星列表

艺术家笔下 HD 154345 b 和它假想的岩石卫星。
母恒星
母恒星 HD 154345
星座 武仙座
赤经 (α) 17h 02m 36.40s
赤纬 (δ) +47° 04′ 54.77″
距离58.91 ± 0.59 ly (18.06 ± 0.18 pc)
光谱类型 G8V
轨道参数
半长轴 (a) 4.18 AU
轨道离心率 (e) 0.036 ± 0.046
公转周期 (P) 3322 ± 93 d (9.095 y)
近星点时间 (T0) 2,453,230 ± 330 JD
半振幅 (K) 14.28 ± 0.75 m/s
物理性质
最小质量(m sin i)0.963 MJ
发现
发现时间 2006年3月12日发现
2007年5月27日确认
发现者 Wright 等人
发现方法 径向速度
发现地点  美国
发表论文 已发表论文
数据库参考
太阳系外行星
百科全书
data
SIMBADdata

HD 154345 b是一颗体积相当于木星太阳系外行星,母恒星是HD 154345

发现

Wright 等人于2006年3月以径向速度法侦测由行星重力使恒星产生的运动,并于2007年5月确定发现该行星[1]

行星状态

该行星属于类木行星,质量比木星稍低,半径与木星大约相同或稍大。该行星可能有卫星系统或环系统。它和母恒星距离4.18天文单位,公转周期约9.095年[2]

参见

参考资料

  1. ^ Wright, J. T.; et al. Four New Exoplanets and Hints of Additional Substellar Companions to Exoplanet Host Stars. The Astrophysical Journal. 2007, 657 (1): 533–545 [2012-07-17]. Bibcode:2007ApJ...657..533W. arXiv:astro-ph/0611658可免费查阅. doi:10.1086/510553. (原始内容存档于2012-02-16). 
  2. ^ Wright, J. T.; et al. The Jupiter Twin HD 154345b. The Astrophysical Journal Letters. 2008, 683 (1): L63–L66. Bibcode:2008ApJ...683L..63W. arXiv:0802.1731可免费查阅. doi:10.1086/587461. 


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HD 154345 b
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