For faster navigation, this Iframe is preloading the Wikiwand page for IC 2602.

IC 2602

IC 2602
观测资料 (J2000 历元)
星座船底座
赤经10h 42m 57.5s[1]
赤纬-64° 23′ 39″
距离486 ly[2] (149 pc)
视星等 (V)1.9[3]
视大小 (V)50 × 50
物理特征
估计年龄13.7 M.yr−1
其他特征Theta Carinae Cluster, Caldwell 102, Cr 229, Mel 102, VDBH 103[2]
相关条目:疏散星团NGC天体表

IC 2602,又称为南七姐妹星团船底座θ星团,是一个位于船底座疏散星团。这个星团距离地球约479光年裸眼可见。

特质

IC 2602表面亮度达1.9等,比昴星团暗弱70%,总共包含60颗恒星。星团中最明亮的是南船三,视星等约2.74等。其他成员恒星视星等在5等左右。

IC 2602跨越天空一个相当大的面积,大约50角分,所以最好使用大型双筒望远镜或天文望远镜接广角目镜观看。IC 2602被认为与疏散星团IC2391具有相同年龄[4]。通过锂元素衰变测定他们年龄有50亿年 [5]

历史

1751年3月3日,法国天文学家拉卡伊南非好望角首次发现该星团[6]

成员

南船三是疏散星团中最亮的恒星,视星等为 +2.74。南船三被称为钻石十字星群的一部分,经常被误认为是南十字星座中的南十字星群。

南船二是另一颗三等星,也是IC 2602的成员,尽管它位于主要恒星群外围,视星等变化范围为3.22至3.55等。

该星团的其他成员均为五等星,但有几颗是肉眼可见的天体,包括HR 4196、HR 4204、HD 93194、HR 4219、HR 4220、HR 4222、HD 92536 、HD 93738和船底座V364。

IC 2602最亮恒星
名称 视星等[7] 恒星光谱[8] 距离 (pc)
南船三 2.735 B0Vp 142[9]
南船二 3.247 B4Vne 104.645[7]
HR 4204 5.719 B3IV/V 309.598[10][11]
HR 4219 5.297 B6Vnn 156.674[7]
HR 4222 4.807 B4V 154.007[7]
HD 92536 6.313 B8V 156.823[7]
HD 93194 4.777 B3/5Vn 169.146[7]
HD 93738 8.571 B9.5V 417.168[7]
V364 Carinae 5.465 ApSi 160.013[7]
HD 92938 4.758 B3V 140.634[7]

参考文献

  1. ^ NED results for object IC 2602. National Aeronautics and Space Administration / Infrared Processing and Analysis Center. [23 January 2017]. (原始内容存档于2020-01-04). 
  2. ^ 2.0 2.1 [ IC 2602] 请检查|url=值 (帮助). SIMBAD. 斯特拉斯堡天文资料中心. 
  3. ^ IC 2602 - SEDS Messier Database. [23 January 2016]. (原始内容存档于2023-12-31). 
  4. ^ Stauffer, J.R.; et al. Rotational Velocities and Chromospheric/Coronal Activity of Low-Mass Stars in the Young Open Clusters IC 2391 and IC 2602. Astrophysical Journal. 1997, 479 (2): 776. Bibcode:1997ApJ...479..776S. doi:10.1086/303930. 
  5. ^ Barrado y Navascues, D., Stauffer, J.R., & Jayawardhana, R. Spectroscopy of Very Low Mass Stars and Brown Dwarfs in IC 2391: Lithium Depletion and Hα Emission. Astrophysical Journal. 2002, 614 (1): 386–397. Bibcode:2004ApJ...614..386B. arXiv:astro-ph/0406436可免费查阅. doi:10.1086/423485. 
  6. ^ Jones, K. G. The Search for the Nebulae - VI. Journal of the British Astronomical Association. March 1969, 79: 213 - 222. Bibcode:1969JBAA...79..213J. 
  7. ^ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 Gaia Archive. gea.esac.esa.int. [2022-12-24]. (原始内容存档于2016-09-03). 
  8. ^ Theta Carinae. simbad.u-strasbg.fr. [2022-12-24]. (原始内容存档于2022-02-17). 
  9. ^ Whitman, Alan. At The Eyepiece: Eclipse-Chasing Perfection - The Caribbean. Journal of the Royal Astronomical Society of Canada. June 1998, 92: 158. Bibcode:1998JRASC..92..158W. 
  10. ^ Catalogues - Hipparcos - Cosmos. www.cosmos.esa.int. [2022-12-24]. (原始内容存档于2024-04-07). 
  11. ^ Equated from parallax in milliarcseconds (mas).

外部链接

{{bottomLinkPreText}} {{bottomLinkText}}
IC 2602
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?