15 Orionis

Star system in the constellation Orion 15 Orionis Orion constellation map.svg center 280 right Red circle.svg 10 15 Orionis 756 83 Location of 15 Orionis (circled) J2000 Orion 05 09 41.964813392331785048050176 +15 35 49.9051 4.822002yCat.2237....0D VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system CDS/ADC Collection of Electronic Catalogues 2237 Ducati J. R. 2002 giantRachkovskaya T. M. Abundances of carbon, nitrogen, oxygen, and other elements in the atmospheres of the giants 15 ori and 22 ɛ sex Astronomy Reports 2008 52 1 53 10.1134/S106377290801006X 2008ARep...52...53R F2IV1995yCat.5050....0H VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050 Hoffleit D. Warren W. H. 1995 +0.32 +0.19 +28.792008AJ....135..209M 10.1088/0004-6256/135/1/209 Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity The Astronomical Journal 135 209–231 2008 Massarotti Alessandro Latham David W. Stefanik Robert P. Fogel Jeffrey 1 121883397 free −3.105 −3.444 9.5097 0.2951 −0.042012AstL...38..331A 10.1134/S1063773712050015 1108.4971 XHIP: An extended hipparcos compilation Astronomy Letters 38 5 331 2012 Anderson E. Francis Ch. 119257644 Vizier catalog entry 15 Ori A 3.42 0.672012A&A...537A.120Z Rotational velocities of A-type stars. IV. Evolution of rotational velocities Astronomy and Astrophysics 537 A120 Zorec J. Royer F. Asplund Martin Cassisi Santi Ramirez Ivan Melendez Jorge Bensby Thomas Feltzing Sofia 2012 1201.2052 10.1051/0004-6361/201117691 free 55586789 5.91999A&A...352..555A astro-ph/9911002 Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures Astronomy and Astrophysics 352 555–562 Allende Prieto C. Lambert D. L. 1999 Vizier catalog entry 7161 50 49 commas 300 60 3.752011A&A...525A..71W 10.1051/0004-6361/201015014 free 1009.1491 Coudé-feed stellar spectral library – atmospheric parameters Astronomy & Astrophysics 525 A71 2010 Wu Yue Singh H. P. Prugniel P. Gupta R. Koleva M. 53480665 +0.21 500Mallik Sushma V. Parthasarathy M. Pati A. K. Lithium and rotation in F and G dwarfs and subgiants Astronomy and Astrophysics 2003 409 251 10.1051/0004-6361:20031084 free 2003A&A...409..251M 15 Ori +15°752 33276 24010 1676 94359 J05097+1536AB 6306 J05097+1536AB 15+Ori 15 Orionis is a suspected astrometric binaryEggleton P. P. Tokovinin A. A. A catalogue of multiplicity among bright stellar systems Monthly Notices of the Royal Astronomical Society 389 2 869–879 September 2008 10.1111/j.1365-2966.2008.13596.x free . 2008MNRAS.389..869E 0806.2878 14878976 star system in the equatorial constellation of Orion, near the border with Taurus. It is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 4.82. The system is approximately 340 light years away from the Sun based on parallax. It is moving further from the Earth with a heliocentric radial velocity of +29 km/s, having come to within 21.11 pc ly 0 out off some three million years ago. The primary component is an early F-type subgiant star with a stellar classification of F2 IV, a star that has exhausted the hydrogen at its core and has begun to evolve into a giant. It has 3.42 times the mass of the Sun and 5.9 times the Sun's radius. The star still has a relatively high rotation rate, showing a projected rotational velocity of 60 km/s. It is radiating 300 times the luminosity of the Sun from its expanding photosphere at an effective temperature of 7,161 K. It has one suspected companion, component B, at a separation of 0.3".2001AJ....122.3466M 10.1086/323920 The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog The Astronomical Journal 122 6 3466 2001 Mason Brian D. Wycoff Gary L. Hartkopf William I. Douglass Geoffrey G. Worley Charles E. free Vizier catalog entry References Category:F2IV stars Category:Astrometric binaries Category:Orion (constellation) BD+15 752 Orionis, 15 033276 024010 1676