Star in the constellation Vela
This article is about a Velorum. For A Velorum, see HD 72108 .
HD 75063 is a single star in the southern constellation of Vela . It has the Bayer designation of a Velorum , while HD 75063 is the identifier from the Henry Draper Catalogue apparent visual magnitude of 3.87 and has a white hue. The star is located at a distance of approximately 1,900 light-years from the Sun based on parallax measurements and has an absolute magnitude of −4.89. It is drifting further away with a radial velocity of +23 km/s.
This object has been stellar classifications of A1III and A0 II, matching a massive A-type giant or bright giant star, respectively. It is an estimated 31 million years old and is spinning with a projected rotational velocity of 30 km/s. The star has 8.6 times the mass of the Sun and around 4.5 times the Sun's radius . The star is radiating 8,670 times the Sun's luminosity from its photosphere at an effective temperature of 8,023 K .
References
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^ 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 .
^ Levato, O. H. (August 1972). "Rotational Velocities and Spectral Types of Some A-Type Stars" . Publications of the Astronomical Society of the Pacific . 84 (500): 584. Bibcode :1972PASP...84..584L . doi :10.1086/129336 .
^ Houk, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars . Vol. 2. Ann Arbor: Dept. of Astronomy, University of Michigan. Bibcode :1978mcts.book.....H .
^ 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 .
^ Pasinetti Fracassini, L. E.; et al. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics . 367 (2) (Third ed.): 521–524. arXiv :astro-ph/0012289 . Bibcode :2001A&A...367..521P . doi :10.1051/0004-6361:20000451 . S2CID 425754 .
^ McDonald, I.; et al. (2012). "Fundamental parameters and infrared excesses of Hipparcos stars" . Monthly Notices of the Royal Astronomical Society . 427 (1): 343–357. arXiv :1208.2037 . Bibcode :2012MNRAS.427..343M . doi :10.1111/j.1365-2966.2012.21873.x . S2CID 118665352 .
^ Royer, F.; et al. (May 2002). "Rotational velocities of A-type stars II. Measurement of vsini in the northern hemisphere". Astronomy & Astrophysics . 393 : 897–912. arXiv :astro-ph/0205255 . Bibcode :2002A&A...393..897R . doi :10.1051/0004-6361:20020943 . S2CID 14070763 .
"a Vel" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2020-01-22.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 .
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