For faster navigation, this Iframe is preloading the Wikiwand page for 海石一.

海石一

海石一

艺术家笔下的海石一双星系统。
观测资料
历元 J2000
星座 船底座
星官 近南极星区 海石
赤经 08h 22m 30.8s
赤纬 −59° 30′ 35″
视星等(V) 1.86 (~2.17 / ~4.08)
特性
光谱分类K3 III(K7Ib)/B2 V
U−B 色指数0.19
B−V 色指数1.20
变星类型Eclipsing
(suspected)
天体测定
径向速度 (Rv)2 km/s
自行 (μ) 赤经:−25.34 mas/yr
赤纬:22.72 mas/yr
视差 (π)5.16 ± 0.49 mas
距离630 ± 60 ly
(190 ± 20 pc)
绝对星等 (MV)−4.58
详细资料
质量10.5/8.2 M
半径186/6.2 R
亮度11800/~5400 L
温度4,030/21,600 K
金属量?
自转?
年龄?
其他命名
Avior, HR 3307, CD−59°1032, HD 71129, SAO 235932, FK5 315, HIP 41037, GC 11463, CCDM J08225-5931
参考数据库
SIMBAD资料

海石一(ε Car / 船底座ε)是船底座的一颗恒星,视星等+1.86,是天空中最亮的恒星之一,但在北半球无法看见。

海石一有一个广为人知的、但非经典的名字:Avior,这个名字在20世纪30年代后期由英国航海星历局(HM Nautical Almanac Office)为皇家空军发行的航空星历中命名。在这本包含57个恒星的新航空星历中,有2颗恒星没有经典的命名:海石一(船底座ε)和孔雀座α。但皇家空军坚持所有的恒星必须有专名,因此创造了两个新名称:孔雀座α被命名为孔雀,同时船底座ε被命名为Avior。[1]

海石一是一个双星系统,主星是一颗濒临死亡的橙巨星,光谱型K3III,伴星为一颗炽热的蓝矮星,光谱型B2V。两颗星有规则的互相掩食,导致0.1星等的光度变化。

注释

  1. ^ Sadler, D.H.: "A Personal History of H.M. Nautical Almanac Office", page 46. Edited and privately published by Wilkins, G.A., 1993
{{bottomLinkPreText}} {{bottomLinkText}}
海石一
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?