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NGC 2423-3 b

NGC 2423-3 b
太阳系外行星 太阳系外行星列表
母恒星
母恒星 NGC 2423-3
星座 船尾座
距离2498 ly (766 pc)
光谱类型 K-M III
轨道参数
半长轴 (a) 2.1 AU
轨道离心率 (e) 0.21 ± 0.07
公转周期 (P) 714.3 ± 5.3 d
角距 (θ) 2.742 mas
近星点时间 (T0) 2,453,213 ± 21 JD
半振幅 (K) 71.5 m/s
物理性质
质量(m)>10.6 MJ
发现
发现时间 2007年6月21日
发现者 米歇尔·麦耶等人
发现方法 多普勒光谱学
发现地点  法国
发表论文 已发表论文

NGC 2423-3b是一颗距离地球约2498光年的太阳系外行星,位于船尾座[1]。2007年发现该行星环绕疏散星团NGC 2423的其中一颗成员星,红巨星NGC 2423-3。该行星的质量下限是10.6倍木星质量,但目前仍不知道它的轨道倾角,无法得知他的真实质量,因此它也可能是棕矮星

该行星由克里斯多福·洛维斯和米歇尔·麦耶于2007年6月发现。洛维斯于2006年5月在另一颗船尾座的恒星HD 69830旁发现三颗质量相当于海王星的系外行星。

参见

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参考资料

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  1. ^ C. Lovis and M. Mayor. Two substellar companions in the open clusters NGC 2423 and NGC 4349. Astronomy & Astrophysics. 2007, 472: 657–664 [2017-09-05]. Bibcode:2007A&A...472..657L. arXiv:0706.2174可免费查阅. doi:10.1051/0004-6361:20077375. (原始内容存档于2010-04-08). 

外部链接

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NGC 2423-3 b
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