(Redirected from G Velorum )
Star in the constellation Vela
HD 75710
Observation dataEpoch J2000 Equinox J2000
Constellation
Vela
Right ascension
08 49 47.63746
Declination
−45° 18′ 28.3346″
Apparent magnitude (V)
4.94
Characteristics
Spectral type
A2 III
B−V color index
+0.043±0.003
Astrometry Radial velocity (Rv )+5.0±7.4 km/s Proper motion (μ) RA: −11.490 mas /yr Dec.: +13.450 mas /yr Parallax (π)2.7107 ± 0.1660 mas Distance 1,200 ± 70 ly pc ) Absolute magnitude (MV )−2.71 Details Luminosity 914.04 L ☉ Temperature 8,150 K Rotational velocity (v sin i )110 km/s Other designations g Vel , CD −44° 4861, FK5 2698, GC 12204, HD 75710, HIP 43347, HR 3520, SAO 220540, PPM 313660 Database references SIMBAD data
HD 75710 is a single star in the constellation of Vela . It has an apparent visual magnitude of approximately 4.94, which is bright enough to be faintly visible to the naked eye. Based upon an annual parallax shift of 2.7 mas , it is located about 1,200 light-years from the Sun .
The stellar classification of this star is A2 III, suggesting it is in the giant star stage of its stellar evolution . It has a high rate of spin with a projected rotational velocity of 110 km/s, which is giving the star an oblate shape with an equatorial bulge that is 7% larger than the polar radius. HD 75710 is radiating 914 times the Sun's luminosity from its photosphere at an effective temperature of 8,150 K .
References
^ Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics 616 . A1. arXiv :1804.09365 . Bibcode :2018A&A...616A...1G . doi :10.1051/0004-6361/201833051 .Gaia DR2 record for this source at VizieR .
^ 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 .
^ 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 .
de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics , 546 : 14, arXiv :1208.3048 , Bibcode :2012A&A...546A..61D , doi :10.1051/0004-6361/201219219 , S2CID 59451347 , A61.
^ McDonald, I.; et al. (2012), "Fundamental parameters and infrared excesses of Hipparcos stars", Monthly Notices of the Royal Astronomical Society , 427 : 343–357, arXiv :1208.2037 , Bibcode :2012MNRAS.427..343M , doi :10.1111/j.1365-2966.2012.21873.x , S2CID 118665352 .
^ Belle, G. T. (2012), "Interferometric observations of rapidly rotating stars", The Astronomy and Astrophysics Review , 20 : 51, arXiv :1204.2572 , Bibcode :2012A&ARv..20...51V , doi :10.1007/s00159-012-0051-2 , S2CID 119273474 .
"HD 75710" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2018-08-08.Eggleton, P. P.; Tokovinin, A. A. (2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society , 389 (2): 869, arXiv :0806.2878 , Bibcode :2008MNRAS.389..869E , doi :10.1111/j.1365-2966.2008.13596.x , S2CID 14878976 .
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