For faster navigation, this Iframe is preloading the Wikiwand page for 天苑三.

天苑三

波江座δ
观测资料
历元 J2000.0
星座 波江座[1][2]
星官 天苑
赤经 3h 43m 14.9s[1][2]
赤纬 -9° 45′ 48″[1][2]
视星等(V) 3.54[1][2]
特性
光谱分类K0+IV[1][2]
U−B 色指数0.69[1][2]
B−V 色指数0.92[1][2]
R−I 色指数0.5[1][2]
天体测定
径向速度 (Rv)0.69 km/s
自行 (μ) 赤经:-6 mas/yr
赤纬:- mas/yr
视差 (π)110.025 ± 0.27 mas
距离29.64 ± 0.07 ly
(9.09 ± 0.02 pc)
其他命名
BD-10 728,SAO 130686,HD 23249,HR 1136
参考数据库
SIMBAD资料

波江座δ,又名BD-10 728HD 23249SAO 130686HR 1136,是波江座的一颗恒星[1][2],视星等为3.54,位于银经198.1,银纬-46,其B1900.0坐标为赤经3h 38m 27.4s,赤纬-10° -46′ 6″。这个恒星是一个橙黄色的次巨星,距离我们约29光年,属于太阳的近邻。该星绝对星等为+3.75,总光度约为太阳的3倍,直径为太阳的2.33倍,表面温度约为5000K。与普通红巨星相比,它要小得多,也暗不少,但它会继续向着红巨星方向演化,最后成为一个真正的巨星。 这个恒星可能拥有一个气态的巨行星。

参考文献

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 Pulsating variable Star. SIMBAD. Centre de Données astronomiques de Strasbourg. [2012-07-13]. (原始内容存档于2016-03-19). 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 VizieR Detailed Page. [2012-07-13]. (原始内容存档于2016-03-05). 
{{bottomLinkPreText}} {{bottomLinkText}}
天苑三
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?