60 Aurigae

60 Aurigae is a binary star[3] system in the northern constellation of Auriga. The pair have a combined apparent visual magnitude of 6.319[2] and, based upon parallax measurements, they are approximately 210 light-years (64 parsecs) distant from the Earth.[1]

60 Aurigae
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension  06h 53m 13.40058s[1]
Declination +38° 26′ 16.8476″[1]
Apparent magnitude (V) 6.319[2] (6.47/8.96)[3]
Characteristics
Spectral type F5 V[4] (A8/G0)[3]
B−V color index +0.328[2]
Astrometry
Radial velocity (Rv)+32.4[5] km/s
Proper motion (μ) RA: +42.40[1] mas/yr
Dec.: -179.12[1] mas/yr
Parallax (π)15.21 ± 1.03[1] mas
Distance210 ± 10 ly
(66 ± 4 pc)
Absolute magnitude (MV)2.11[2]
Orbit[6]
Period (P)271.10±61.00 yr
Semi-major axis (a)0.793±0.073″
Eccentricity (e)0.487±0.090
Inclination (i)58.4±5.4°
Longitude of the node (Ω)156.4±7.0°
Periastron epoch (T)2002.72±6.07
Argument of periastron (ω)
(secondary)		59.7±19.9°
Details
Temperature6,223[2] K
Metallicity [Fe/H]+0.04[2] dex
Age1.7[2] Gyr
Other designations
60 Aurigae, BD+38° 1636, HD 50037, HIP 33064, HR 2541, SAO 59576.[4]
Database references
SIMBADdata

The combined spectrum of the pair match a stellar classification of F5 V.[4] The primary component may be an A-type star with an apparent magnitude of 6.47,[3] while the fainter, 8.96 magnitude secondary is possibly a G-type star. The pair orbit each other with a period of 271.1 years at an angular separation of 0.793 arcseconds.[6]

Nomenclature

60 Aurigae is the Flamsteed designation of this star, also catalogued as HR 2541 and HD 50037. The designation 60 Aurigae has sometimes been identified with Psi8 Aurigae however Simbad lists Psi8 Aurigae as 61 Aurigae.[7]

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References
  1. 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. Note: see VizieR catalogue I/311.
  2. Holmberg, J.; Nordström, B.; Andersen, J. (July 2009), "The Geneva-Copenhagen survey of the solar neighbourhood. III. Improved distances, ages, and kinematics", Astronomy and Astrophysics, 501 (3): 941–947, arXiv:0811.3982, Bibcode:2009A&A...501..941H, doi:10.1051/0004-6361/200811191.
  3. Cvetkovic, Z.; Ninkovic, S. (June 2010), "On the Component Masses of Visual Binaries", Serbian Astronomical Journal, 180 (180): 71–80, Bibcode:2010SerAJ.180...71C, doi:10.2298/SAJ1080071C.
  4. "60 Aur -- Star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2012-08-24.
  5. Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick (eds.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, 30, University of Toronto: International Astronomical Union, p. 57, Bibcode:1967IAUS...30...57E.
  6. Hartkopf, William I.; Mason, Brian D. (2009). "Speckle Interferometry at Mount Wilson Observatory: Observations Obtained in 2006-2007 and 35 New Orbits". The Astronomical Journal. 138 (3): 813–826. Bibcode:2009AJ....138..813H. doi:10.1088/0004-6256/138/3/813.
  7. Kostjuk, N. D. (2004). "VizieR Online Data Catalog: HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index (Kostjuk, 2002)". VizieR On-line Data Catalog: IV/27A. Originally Published in: Institute of Astronomy of Russian Academy of Sciences (2002). 4027. Bibcode:2004yCat.4027....0K.
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