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HD 102117 b

HD 102117b
发现
发现者英澳天文台
发现日期2004年9月16日
视向速度法
轨道参数
半长轴0.1532 ±0.0088
离心率0.106 ±0.07
轨道周期20.8133 ±0.0064地球日
近心点经度283 ±3°
近心点时间10942.9 ±3 2.400.000儒略日

HD 102117b是一颗位于半人马座、距离地球约137光年的系外行星,其母星为HD 102117。该行星是一颗小型类木行星,其大小仅为木星的1/5。其轨道十分接近其母星,但还未如著名的飞马座51b一般进入“烈焰轨道”(torch orbit)。该行星是迄今为止发现的最小的系外行星之一。[1]

2004年,英澳行星搜索计划项目宣布在HD 102117附近发现了这颗行星。[2]不久之后高精度径向速度行星搜索器项目小组也宣布证实了这颗行星的存在。两支团队均是使用视向速度法探测到这颗行星的。[3]

参考文献

  1. ^ Butler; et al. Catalog of Nearby Exoplanets. The Astrophysical Journal. 2006, 646 (1): 505–522 [2009-07-12]. doi:10.1086/504701. (原始内容存档于2009-05-02). 
  2. ^ Tinney; et al. Three Low-Mass Planets from the Anglo-Australian Planet Search. The Astrophysical Journal. 2005, 623 (2): 1171–1179. doi:10.1086/428661. 
  3. ^ Lovis; et al. The HARPS search for southern extra-solar planets III. Three Saturn-mass planets around HD 93083, HD 101930 and HD 102117. Astronomy and Astrophysics. 2005, 437: 1121 – 1126 [2009-07-12]. doi:10.1051/0004-6361:20052864. (原始内容 (abstract)存档于2005-10-23). 

外部链接

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HD 102117 b
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