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HD 114783

HD 114783
观测资料
历元 J2000
星座 室女座
星官
赤经 13h 12m 43.7860s
赤纬 –02° 15′ 54.143″
视星等(V) 7.57
特性
光谱分类K0V
天体测定
视差 (π)48.95 ± 1.06 mas
距离67 ± 1 ly
(20.4 ± 0.4 pc)
其他命名
BD-01°2784, GJ 3769, HIP 64457, SAO 139218
参考数据库
SIMBAD资料
系外行星数据库英语Exoplanet Archive资料
ARICNS资料
系外行星百科资料

HD 114783是一颗位于室女座的恒星,其视星等为7.57,肉眼不能看见,需使用望远镜方能观测。温度比太阳稍低,光谱分类为K0 V。

2001年,天文学家使用凯克望远镜,透过多普勒侦测法,发现了一颗行星绕着这颗恒星公转。这颗行星被编为HD 114783 b,的质量与木星差不多,其平均日距约为地球的1.2倍,近远日点分别为1.08和1.32 AU。由于恒星的温度比太阳低,因此这颗行星的温度也会比地球低,介乎摄氏零下80—100°C左右。

根据红外线的数据特性,这颗行星的外观可能呈水冰的白色。

HD 114783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 >1.034 ± 0.089 MJ 1.169 ± 0.068 496.9 ± 2.3 0.085 ± 0.033

参见

参考资料

  1. ^ Butler, R. P.; et al. Catalog of Nearby Exoplanets. The Astrophysical Journal. 2006, 646 (1): 505–522 [2012-11-22]. Bibcode:2006ApJ...646..505B. arXiv:astro-ph/0607493可免费查阅. doi:10.1086/504701. (原始内容存档于2009-05-02). 

相关网站

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HD 114783
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