Psi8 Aurigae

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For other star systems with this Bayer designation, see Psi Aurigae.
Psi8 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
Distance 210 ± 10 ly
(66 ± 4 pc)
Absolute magnitude (MV) 2.11[2]
Orbit[3]
Period (P) 271.10 yr
Semi-major axis (a) 0.793"
Details
Temperature 6,223[2] K
Metallicity [Fe/H] +0.04[2] dex
Age 1.7[2] Gyr
Other designations
60 Aurigae, BD+38° 1636, HD 50037, HIP 33064, HR 2541, SAO 59576.[4]

Psi8 Aurigae8 Aur, ψ8 Aurigae) is the Bayer designation for 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]

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.[3]

References[edit]

  1. ^ a b c d e f 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. ^ a b c d e f g 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. ^ a b c d e f Cvetkovic, Z.; Ninkovic, S. (June 2010), "On the Component Masses of Visual Binaries", Serbian Astronomical Journal 180: 71–80, Bibcode:2010SerAJ.180...71C, doi:10.2298/SAJ1080071C. 
  4. ^ a b c "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, Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, University of Toronto: International Astronomical Union, Bibcode:1967IAUS...30...57E. 

External links[edit]