Star in the constellation Auriga
φ Aurigae in optical light Phi Aurigae , Latinized from φ Aurigae, is a giant star in the northern constellation of Auriga . It is faintly visible to the naked eye with an apparent visual magnitude of 5.089. It lies 10′ from another faint naked-eye star HD 35520 , between the three open clusters M36 and M38 , and NGC 1893 .
The distance to this star, as determined from parallax measurements, is approximately 480 light-years (150 parsecs ) with a 10 light-year margin of error . This is an evolved giant star with a stellar classification of K3 IIIp and an estimated radius equal to 34 times the radius of the Sun. The outer envelope has an effective temperature of 4,222 K, giving it the cool orange-hued glow of a K-type star .
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 .
^ Jennens, P. A.; Helfer, H. L. (September 1975), "A new photometric metal abundance and luminosity calibration for field G and K giants.", Monthly Notices of the Royal Astronomical Society , 172 (3): 667–679, Bibcode :1975MNRAS.172..667J , doi :10.1093/mnras/172.3.667 .
^ Cenarro, A. J.; et al. (January 2007), "Medium-resolution Isaac Newton Telescope library of empirical spectra - II. The stellar atmospheric parameters", Monthly Notices of the Royal Astronomical Society 374 (2): 664–690, arXiv :astro-ph/0611618 , Bibcode :2007MNRAS.374..664C , doi :10.1111/j.1365-2966.2006.11196.x , S2CID 119428437 .
Famaey, B.; et al. (January 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics , 430 (1): 165–186, arXiv :astro-ph/0409579 , Bibcode :2005A&A...430..165F , doi :10.1051/0004-6361:20041272 , S2CID 17804304 .
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 .
^ van Belle, Gerard T.; von Braun, Kaspar; Ciardi, David R.; Pilyavsky, Genady; Buckingham, Ryan S.; Boden, Andrew F.; Clark, Catherine A.; Hartman, Zachary; van Belle, Gerald; Bucknew, William; Cole, Gary (2021-12-01). "Direct Measurements of Giant Star Effective Temperatures and Linear Radii: Calibration against Spectral Types and V - K Color" . The Astrophysical Journal . 922 (2): 163. arXiv :2107.09205 . Bibcode :2021ApJ...922..163V . doi :10.3847/1538-4357/ac1687 . ISSN 0004-637X . Phi Aurigae's database entry at VizieR .
De Medeiros, J. R.; et al. (November 2000), "Rotation and lithium in single giant stars", Astronomy and Astrophysics , 363 : 239–243, arXiv :astro-ph/0010273 , Bibcode :2000A&A...363..239D .
"* phi Aur" . SIMBAD Centre de données astronomiques de Strasbourg . Retrieved 2012-08-23.van Leeuwen, Floor (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics , 474 (2): 653–664, arXiv :0708.1752v1 , Bibcode :2007A&A...474..653V , doi :10.1051/0004-6361:20078357 , S2CID 18759600 . Note: see VizieR catalogue I/311 .
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Phi Aurigae
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Location of φ Aurigae (circled)
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