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HD 121504

HD 121504
观测资料
历元 J2000
星座 半人马座
星官 (({星官))}
赤经 13h 57m 17.2375s
赤纬 –56° 02′ 24.153″
视星等(V) 7.6
距离 144.6 光年
(44.57 pc)
光谱分类 G2V
其他命名
CD-55°5427, GC 18842, HIP 68162

LTT 5432, NLTT 35734, SAO 241321

Simbad=HD+121504

HD 121504是一颗位于半人马座的视星等8等黄矮星,光谱类型是与太阳类似的 G2V,并且光度稍高于南门二A。但它距离地球约140光年,肉眼不可见,必须使用双筒望远镜或小型望远镜。

另一颗在天球上和它距离很近的恒星SAO 241323和HD 121504是光学双星,但前者实际上是距离地球数千光年的白色巨星

2000年时日内瓦系外行星搜寻计划宣布在该恒星旁发现一颗系外行星[1]

HD 121504的行星系[2]
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 >1.22 MJ 0.33 63.33 ± 0.03 0.03 ± 0.01

参考资料

  1. ^ European Southern Observatory: Six Extrasolar Planets Discovered. SpaceRef Interactive Inc. 7 August 2000 [15 August 2009]. 
  2. ^ Mayor, M.; et al. The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE. Astronomy and Astrophysics. 2004, 415 (1): 391–402 [2013-03-10]. Bibcode:2004A&A...415..391M. arXiv:astro-ph/0310316可免费查阅. doi:10.1051/0004-6361:20034250. (原始内容存档于2019-06-16). 

外部链接


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HD 121504
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