27 Arietis

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]
Distance289 ± 13[1] ly
(89 ± 4[1] pc)
Spectral typeG5 III-IV[3]
Other designations
BD+17 380, FK5 1069, HD 15596, HIP 11698, HR 731, SAO 92983.[4]

27 Arietis (abbreviated 27 Ari) is a star in the northern constellation of Aries. 27 Arietis is the Flamsteed designation. 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

  1. 1 2 3 4 5 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. 1 2 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. 1 2 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

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