Kappa Columbae
Star in the constellation Columba
Kappa Columbae , Latinized from κ Columbae, is a solitary[ 8] star in the southern constellation of Columba . It has an apparent visual magnitude of 4.37,[ 2] parallax shift of 17.87 mas ,[ 1] light years from the Sun . It has a peculiar velocity of ± 1.9 km/srunaway star .[ 9]
This is an evolved K-type giant star with a stellar classification of K0.5 IIIa.[ 3] angular diameter of this star, after correction for limb darkening , is ± 0.03 mas [ 10] radius of the Sun .[ 6] mass of the Sun and is about 1.7 billion years old. The star radiates 57.5 times the solar luminosity from its outer atmosphere at an effective temperature of 4,876 K.[ 3] [ 4]
In Chinese , 孫 Sūn Grandson θ Columbae .[ 11] 孫一 Sūn yī the First Star of Grandson .).[ 12]
References
^ a b c d e f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics , 474 (2): 653–664, arXiv :0708.1752 Bibcode :2007A&A...474..653V , doi :10.1051/0004-6361:20078357 , S2CID 18759600 . ^ a b c d Johnson, H. L.; Iriarte, B.; Mitchell, R. I.; Wisniewskj, W. Z. (1999), "UBVRIJKL photometry of the bright stars", Commission Lunar and Planetary Laboratory , 4 : 99, Bibcode :1966CoLPL...4...99J . ^ a b c d e Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", The Astronomical Journal , 150 (3): 88, arXiv :1507.01466 Bibcode :2015AJ....150...88L , doi :10.1088/0004-6256/150/3/88 , S2CID 118505114 . ^ a b Samus, N. N.; Durlevich, O. V.; et al. (2004), Combined General Catalogue of Variable Stars (GCVS4.2) , retrieved 2016-12-26 . ^ Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters , 38 (5): 331, arXiv :1108.4971 Bibcode :2012AstL...38..331A , doi :10.1134/S1063773712050015 , S2CID 119257644 . ^ a b Lang, Kenneth R. (2006), Astrophysical formulae Birkhäuser , ISBN 3-540-29692-1 * ) is given by:
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{\displaystyle {\begin{aligned}2\cdot R_{*}&={\frac {(56.0\cdot 1.75\cdot 10^{-3})\ {\text{AU}}}{0.0046491\ {\text{AU}}/R_{\bigodot }}}\\&\approx 21.1\cdot R_{\bigodot }\end{aligned}}}
^ "kap Col -- Variable Star" , SIMBAD Astronomical Database , Centre de Données astronomiques de Strasbourg , retrieved 2016-12-25 .^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society 389 (2): 869–879, arXiv :0806.2878 Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x S2CID 14878976 . ^ Tetzlaff, N.; et al. (January 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society 410 (1): 190–200, arXiv :1007.4883 Bibcode :2011MNRAS.410..190T , doi :10.1111/j.1365-2966.2010.17434.x S2CID 118629873 . ^ Richichi, A.; et al. (February 2005), "CHARM2: An updated Catalog of High Angular Resolution Measurements", Astronomy and Astrophysics , 431 (2): 773–777, Bibcode :2005A&A...431..773R , doi :10.1051/0004-6361:20042039 ^ (in Chinese) 中國星座神話 , written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7 .^ (in Chinese) AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 16 日 Archived 2011-08-22 at the Wayback Machine
