For faster navigation, this Iframe is preloading the Wikiwand page for 柱十一 (角宿).

柱十一 (角宿)

柱十一 (半人马座ι )
半人马座及其周围恒星位置和边界的星图。
柱十一的位置(红圈)
观测资料
历元 J2000.0
星座 半人马座
星官 柱 (角宿)
赤经 13h 20m 35.81737s[1]
赤纬 −36° 42′ 44.2447″[1]
视星等(V) +2.73[2]
特性
光谱分类A2 V (kA15hA3mA3va)[3]
U−B 色指数+0.01[2]
B−V 色指数+0.03[2]
天体测定
径向速度 (Rv)+0.1[4] km/s
自行 (μ) 赤经:−341.11[1] mas/yr
赤纬:−86.14[1] mas/yr
视差 (π)55.49 ± 0.17[1] mas
距离58.8 ± 0.2 ly
(18.02 ± 0.06 pc)
绝对星等 (MV)+1.47[5]
详细资料
质量2.5[6] M
表面重力 (log g)4.11[7]
亮度26[8] L
温度8,600[7] K
金属量 [Fe/H]–0.46[7] dex
自转速度 (v sin i)90.3[9] km/s
年龄0.35[6] Gyr
其他命名
ι Cen, CD−36°8497, GJ 508.1, FK5 496, HD 115892, HIP 65109, HR 5028, SAO 204371.[10]
参考数据库
SIMBAD资料

柱十一(半人马座ι)是位于南半球星座半人马座的一颗恒星,意思是支撑库楼的第十一根柱子[11]。依据视差的量测,它与地球距离58.6光年(18.0秒差距[1]。柱十一的视星等是 +2.73[2], 使它在波特尔暗空分类法中归类为很容易以肉眼看见。

中国角宿的一个星官,由半人马座ι半人马座υ2半人马座υ1半人马座V761半人马座ψ半人马座4半人马座3半人马座1半人马π[12]

柱十一的光谱类型与A2V的恒星分类符合,是一颗A型主序星,通过核心区域氢原子的核聚变产生能量。这些能量使恒星表面辐射的有效温度为8,600K[7],使它的外观是白色的色调[13]。它的质量大约是2.5太阳质量,大约已有3.5亿年的历史[6][7]。一个微弱的磁场已初步确定强度为−77 ± 30 G[14]

这颗恒星有红外发射过量,表明他有被称为岩屑盘的尘埃盘环绕着。这个环位于6天文单位的轨道半径内。对于这个年龄期的恒星来说,尘埃异常明亮,这表明最近的一些过程,例如星子之间的碰撞,可能新增了碎片的数量。或者,这个系统中的星子可能具有不寻常的物理性质。截至2011年,在这个系统中尚未寻获行星[6]

柱十一似乎属于IC 2391动力群。这是一组大约16颗共同移动的恒星,它们很可能起源于4,500万年前的同一个分子云[15]

参考资料

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, November 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, S2CID 18759600, arXiv:0708.1752可免费查阅, doi:10.1051/0004-6361:20078357 
  2. ^ 2.0 2.1 2.2 2.3 Johnson, H. L.; et al. UBVRIJKL photometry of the bright stars. Communications of the Lunar and Planetary Laboratory. 1966, 4 (99): 99. Bibcode:1966CoLPL...4...99J. 
  3. ^ Gray, R. O.; et al, Contributions to the Nearby Stars (NStars) Project: spectroscopy of stars earlier than M0 within 40 pc-The Southern Sample, The Astronomical Journal, July 2006, 132 (1): 161–170, Bibcode:2006AJ....132..161G, S2CID 119476992, arXiv:astro-ph/0603770可免费查阅, doi:10.1086/504637 
  4. ^ Wielen, R.; et al, Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions, Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg (Astronomisches Rechen-Institut Heidelberg), 1999, 35 (35): 1, Bibcode:1999VeARI..35....1W 
  5. ^ Anderson, E.; Francis, Ch., XHIP: An extended hipparcos compilation, Astronomy Letters, 2012, 38 (5): 331, Bibcode:2012AstL...38..331A, S2CID 119257644, arXiv:1108.4971可免费查阅, doi:10.1134/S1063773712050015. 
  6. ^ 6.0 6.1 6.2 6.3 Quanz, Sascha P.; et al, Searching for Gas Giant Planets on Solar System Scales: VLT NACO/APP Observations of the Debris Disk Host Stars HD172555 and HD115892, The Astrophysical Journal Letters, August 2011, 736 (2): L32, Bibcode:2011ApJ...736L..32Q, S2CID 118506333, arXiv:1106.4528可免费查阅, doi:10.1088/2041-8205/736/2/L32 
  7. ^ 7.0 7.1 7.2 7.3 7.4 Saffe, C.; et al, Spectroscopic metallicities of Vega-like stars, Astronomy and Astrophysics, October 2008, 490 (1): 297–305, Bibcode:2008A&A...490..297S, S2CID 15059920, arXiv:0805.3936可免费查阅, doi:10.1051/0004-6361:200810260 
  8. ^ Wyatt, M. C.; et al, Steady State Evolution of Debris Disks around A Stars, The Astrophysical Journal, July 2007, 663 (1): 365–382, Bibcode:2007ApJ...663..365W, S2CID 18883195, arXiv:astro-ph/0703608可免费查阅, doi:10.1086/518404 
  9. ^ Díaz, C. G.; et al, Accurate stellar rotational velocities using the Fourier transform of the cross correlation maximum, Astronomy & Astrophysics, July 2011, 531: A143, Bibcode:2011A&A...531A.143D, S2CID 119286673, arXiv:1012.4858可免费查阅, doi:10.1051/0004-6361/201016386 
  10. ^ LTT 5138 -- High proper-motion Star, SIMBAD (Centre de Données astronomiques de Strasbourg), [2012-02-02], (原始内容存档于2021-06-10) 
  11. ^ (中文) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育资讯网 2006 年 7 月 25 日页面存档备份,存于互联网档案馆
  12. ^ (中文) 中国星座神话, written by 陈久金. Published by 台湾书房出版有限公司, 2005, ISBN 978-986-7332-25-7.
  13. ^ The Colour of Stars, Australia Telescope, Outreach and Education (Commonwealth Scientific and Industrial Research Organisation), December 21, 2004 [2012-01-16], (原始内容存档于March 10, 2012) 
  14. ^ Hubrig, S.; et al, Accurate magnetic field measurements of Vega-like stars and Herbig Ae/Be stars, Astronomy and Astrophysics, February 2006, 446 (3): 1089–1094, Bibcode:2006A&A...446.1089H, S2CID 14669402, arXiv:astro-ph/0510157可免费查阅, doi:10.1051/0004-6361:20053794 
  15. ^ Nakajima, Tadashi; Morino, Jun-Ichi; Fukagawa, Misato, Potential Members of Stellar Kinematical Groups within 20 pc of the Sun, The Astronomical Journal, September 2010, 140 (3): 713–722, Bibcode:2010AJ....140..713N, doi:10.1088/0004-6256/140/3/713可免费查阅 
{{bottomLinkPreText}} {{bottomLinkText}}
柱十一 (角宿)
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?