For faster navigation, this Iframe is preloading the Wikiwand page for HD 9446.

HD 9446

HD 9446

观测资料
历元 J2000.0
星座 三角座
星官
赤经 01h 33m 20s
赤纬 +29° 15′ 55″
视星等(V) 8.35
特性
光谱分类G5V
U−B 色指数?
B−V 色指数?
V−R 色指数?
R−I 色指数?
变星类型none
天体测定
详细资料
质量1.00 ± 0.10 M
半径1.00 R
表面重力 (log g)4.41
亮度1.00 L
温度5793 ± 22 K
金属量0.09 ± 0.05
其他命名
HIP 7245

HD 9446,是一颗位于三角座G5V型恒星,距离地球约172光年

2010年1月5日,在HD 9446发现两颗太阳系外行星HD 9446 bHD 9446 c[1]

序号
(依距离排序)
质量
(MJ)
轨道周期
()
半长径
(天文单位)
离心率
b ≥ 0.70±0.06 30.052±0.027 0.189±0.006 0.20±0.06
c ≥ 1.82±0.17 192.9±0.9 0.654±0.022 0.06±0.06

参考资料

[编辑]
  1. ^ Hébrard, G.; X. Bonfils, D. Ségransan, C. Moutou, X. Delfosse, F. Bouchy, I. Boisse, L. Arnold, M. Desort, R. F. Díaz, A. Eggenberger, D. Ehrenreich, T. Forveille, A.-M. Lagrange, C. Lovis, F. Pepe, C. Perrier, F. Pont, D. Queloz, N. C. Santos, S. Udry, A. Vidal-Madjar. The SOPHIE search for northern extrasolar planets: II. A multi-planet system around HD 9446 (PDF). Astronomy & Astrophysics. 2010 [2010-02-20]. (原始内容 (PDF)存档于2010-04-07). 
{{bottomLinkPreText}} {{bottomLinkText}}
HD 9446
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?