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HD 126614

HD 126614
观测资料
历元 J2000.0
星座 室女座
星官
赤经 14h 26m 48.2804s
赤纬 –05° 10′ 40.009″
视星等(V) 8.7
特性
光谱分类K0 / M
视星等 (B)9.9
视星等 (J)7.470
视星等 (H)7.160
视星等 (K)7.060
B−V 色指数1.2
变星类型none
天体测定
自行 (μ) 赤经:–152.40 mas/yr
赤纬:–148.17 mas/yr
视差 (π)14.63 ± 1.15 mas
距离220 ± 20 ly
(68 ± 5 pc)
绝对星等 (MV)4.5
详细资料
质量1.145 M
半径1.09 R
表面重力 (log g)4.39
亮度1.21 L
温度5585 K
金属量+0.56
自转~99 days
自转速度 (v sin i)2.0 ± 0.5 km/s
年龄7.2 ± 2.0 Gyr
其他命名
BD–04°3690, G 124-40, HIP 70623, LTT 5698, NLTT 37355, PPM 197558, SAO 139932
参考数据库
SIMBAD资料
系外行星数据库英语Exoplanet Archive资料
系外行星百科资料

HD 126614是一个视星等9等的三合星,距离地球约223光年,位于室女座。HD 126614 A是光谱类型K型的恒星,而HD 126614 B和NLTT 37349是光谱类型M型的恒星。HD126614 A体积、光度和质量较太阳大,而温度较太阳低;而金属量是太阳的3.6倍,在2009年发现以来是有行星环绕的恒星中金属量最高的。

行星系统

HD 126614的行星系[1]
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 ≥0.38 ± 0.04 MJ 2.35 ± 0.02 1244 ± 17 0.41 ± 0.10

参见

参考资料

  1. ^ Howard, Andrew W.; et al. The California Planet Survey. I. Four New Giant Exoplanets. The Astrophysical Journal. 2010, 721 (2): 1467–1481 [2011-12-12]. Bibcode:2010ApJ...721.1467H. doi:10.1088/0004-637X/721/2/1467. (原始内容存档于2011-06-03). (web Preprint)


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HD 126614
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