Gliese 268

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GJ 268
Observation data
Epoch J2000      Equinox J2000
Constellation Auriga
Right ascension 07h 10m 01.83458s[1][2]
Declination 38° 31′ 46.0672″[1][2]
Spectral type M5Ve+M5Ve[2]
Parallax (π) 165.2 ± 2.1[3] mas
Distance 19.7 ± 0.3 ly
(6.05 ± 0.08 pc)
Other designations
Database references

Gliese 268 (QY Aurigae) is a RS Canum Venaticorum variable star in the Auriga constellation. RS CVn variables tend to be binary star systems with a strong magnetic field influenced by each star's rotation, which is accelerated by the tidal effects of the other star in the system.[8] Gliese 268 in particular is composed of a binary system of two M-type dwarfs, or red dwarfs, and is one of the one hundred closest star systems to the Earth. The primary component of the system has an apparent magnitude of 12.05, and the secondary component an apparent magnitude of 12.45. Neither is visible to the naked eye from Earth.[9]


  1. ^ a b c Perryman; et al. (1997). "HIP 34603". The Hipparcos and Tycho Catalogues. 
  2. ^ a b c SIMBAD, QY Aur (accessed 7 March 2015)
  3. ^ a b Van Altena W. F., Lee J. T., Hoffleit E. D. (1995). "GCTP 1668". The General Catalogue of Trigonometric Stellar Parallaxes (Fourth ed.). 
  4. ^ Luyten, Willem Jacob (1979). "NLTT 17470". NLTT Catalogue. 
  5. ^ Luyten, Willem Jacob (1979). "LHS 226". LHS Catalogue, 2nd Edition. 
  6. ^ Gliese, W. and Jahreiß, H. (1991). "Gl 268". Preliminary Version of the Third Catalogue of Nearby Stars. 
  7. ^ Perryman; et al. (1997). "HIP 34603". The Hipparcos and Tycho Catalogues. 
  8. ^ "RS CVn Stars". Karl Schwarzschild Observatory. Retrieved 26 August 2011. 
  9. ^ "The 100 Nearest Star Systems". Research Consortium on Nearby Stars. Georgia State University. 1 January 2011. Retrieved 26 August 2011.