Star in the constellation Auriga
Omega Aurigae ,Latinized fromω Aurigae , is theBayer designation for adouble star [ 11] constellation ofAuriga . Itsapparent magnitude is 4.95,[ 2] parallax measurements, is approximately 162light-years (50parsecs ).[ 1] Columba group of co-moving stars.[ 12]
This is anA-type main sequence star with astellar classification of A1 V.[ 4] [ 9] projected rotational velocity of 107 km/s.[ 8] [ 3] mass of the Sun and double[ 7] Sun's radius . It is radiating 27[ 6] Sun's luminosity from itsphotosphere at aneffective temperature of 9,230 K.[ 4] infrared excess , suggesting an orbitingdebris disk with a temperature of 20 K at a mean radius ofAU [ 7] angular separation of 4.99 arcseconds .[ 11] X-ray source with a luminosity of× 1029 ergs s−1 [ 13]
^a b c d e f 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 atVizieR .^a b c d Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars",Communications of the Lunar and Planetary Laboratory ,4 (99): 99,Bibcode :1966CoLPL...4...99J . ^a b c Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities",Astronomy & Astrophysics ,537 : A120,arXiv :1201.2052 Bibcode :2012A&A...537A.120Z ,doi :10.1051/0004-6361/201117691 ,S2CID 55586789 . ^a b c d e f Hill, G. M. (February 1995), "Compositional differences among the A-type stars. 2: Spectrum synthesis up to V sin i = 110 km/s",Astronomy and Astrophysics ,294 (2):536– 546,Bibcode :1995A&A...294..536H . ^ Wilson, Ralph Elmer (1953), "General Catalogue of Stellar Radial Velocities",Carnegie Institute Washington D.C. Publication , Washington:Carnegie Institution of Washington ,Bibcode :1953GCRV..C......0W . ^a b c 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 c Cotten, Tara H.; Song, Inseok (July 2016), "A Comprehensive Census of Nearby Infrared Excess Stars",The Astrophysical Journal Supplement Series ,225 (1): 24,arXiv :1606.01134 Bibcode :2016ApJS..225...15C ,doi :10.3847/0067-0049/225/1/15 S2CID 118438871 , 15. ^a b Royer, F.; Zorec, J.; Gómez, A. E. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions",Astronomy and Astrophysics ,463 (2):671– 682,arXiv :astro-ph/0610785 Bibcode :2007A&A...463..671R ,doi :10.1051/0004-6361:20065224 ,S2CID 18475298 . ^a b David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets",The Astrophysical Journal ,804 (2): 146,arXiv :1501.03154 Bibcode :2015ApJ...804..146D ,doi :10.1088/0004-637X/804/2/146 ,S2CID 33401607 . ^ "* ome Aur" .SIMBAD Centre de données astronomiques de Strasbourg . Retrieved2012-08-24 .^a b 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 . ^ Elliott, P.; et al. (May 2016), "Search for associations containing young stars (SACY). VII. New stellar and substellar candidate members in the young associations",Astronomy & Astrophysics ,590 : 28,arXiv :1604.03550 Bibcode :2016A&A...590A..13E ,doi :10.1051/0004-6361/201628253 ,S2CID 53138126 , A13. ^ Makarov, Valeri V. (October 2003), "The 100 Brightest X-Ray Stars within 50 Parsecs of the Sun",The Astronomical Journal ,126 (4):1996– 2008,Bibcode :2003AJ....126.1996M ,doi :10.1086/378164
