27 Arietis

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27 Arietis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aries
Right ascension 02h 30m 54.39819s[1]
Declination +17° 42′ 13.8713″[1]
Apparent magnitude (V) 6.23[2]
Distance 289 ± 13[1] ly
(89 ± 4[1] pc)
Spectral type G5 III-IV[3]
Other designations
BD+17 380, FK5 1069, HD 15596, HIP 11698, HR 731, SAO 92983.[4]

27 Arietis is the Flamsteed designation for a star in the northern constellation of Aries. It is close to the limit of what can be viewed with the naked eye with an apparent visual magnitude is 6.23.[2] The annual parallax shift of 11.30 ± 0.50 mas[1] corresponds to a physical distance of approximately 289 light-years (89 parsecs) from Earth. The stellar classification of G5 III-IV[3] matches the spectral of an evolved subgiant or giant star.

References[edit]

  1. ^ a b c d e van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357. 
  2. ^ a b Johnson, H. L. et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory 4 (99), Bibcode:1966CoLPL...4...99J. 
  3. ^ a b Keenan, Philip C.; Keller, Geoffrey (March 1953), "Spectral Classification of the High-Velocity Stars.", Astrophysical Journal 117: 241, Bibcode:1953ApJ...117..241K, doi:10.1086/145687. 
  4. ^ "27 Ari -- Star", SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), retrieved 2012-07-18. 

External links[edit]