Star in the constellation Vulpecula
10 Vulpeculae is an astrometric binary star system in the northern constellation of Vulpecula . It is faintly visible to the naked eye with an apparent visual magnitude of 5.497. The system is located roughly 330 light years from the Sun, as determined from an annual parallax shift of 9.83±0.49 mas . It is moving closer to the Sun with a heliocentric radial velocity of −9.9 km/s.
The system is a source of X-ray emission . The visible component is an aging giant star with a stellar classification of G8 III. At the age of 1.15 billion years, it has exhausted the hydrogen at its core region and expanded off the main sequence . It is about 13 times the Sun's radius and 2.35 times the Sun's mass . The star is radiating 72 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,008 K.
References
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^ Luck, R. Earle (September 2015), "Abundances in the Local Region. I. G and K Giants", The Astronomical Journal , 150 (3): 23, arXiv :1507.01466 , Bibcode :2015AJ....150...88L , doi :10.1088/0004-6256/150/3/88 , S2CID 118505114 , 88.
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 .
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^ Soubiran, C.; et al. (June 2010), "The PASTEL catalogue of stellar parameters", Astronomy and Astrophysics , 515 : A111, arXiv :1004.1069 , Bibcode :2010A&A...515A.111S , doi :10.1051/0004-6361/201014247 , S2CID 118362423 .
"10 Vul" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2018-04-13.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 .
Haakonsen, Christian Bernt; Rutledge, Robert E. (September 2009), "XID II: Statistical Cross-Association of ROSAT Bright Source Catalog X-ray Sources with 2MASS Point Source Catalog Near-Infrared Sources", The Astrophysical Journal Supplement , 184 (1): 138–151, arXiv :0910.3229 , Bibcode :2009ApJS..184..138H , doi :10.1088/0067-0049/184/1/138 , S2CID 119267456 .
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