65 Arietis

65 Arietis
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Aries
Right ascension 03h 24m 26.11519s[1]
Declination +20° 48 12.56[1]
Apparent magnitude (V) 6.07[2]
Distance312 ± 11 ly
(96 ± 3[1] pc)
Spectral typeA1 V[3]
Other designations
BD+20° 556, HD 21050, HIP 15870, HR 1027, SAO 75915.[2]

65 Arietis (abbreviated 65 Ari) is a star in the northern constellation of Aries. 65 Arietis is the Flamsteed designation. It has an apparent visual magnitude of 6.07,[2] which, according to the Bortle Dark-Sky Scale, means it is faintly visible to the naked eye when viewed from dark suburban skies. Based upon an annual parallax shift of 10.45 ± 0.37 mas,[1] it is approximately 312 light-years (96 parsecs) distant from the Earth.

This is an A-type main sequence star with a stellar classification of A1 V.[3] It has about 2.45 times the mass of the Sun and shines with 40 times the Sun's luminosity. This energy is being radiated into outer space at an effective temperature of 10.300 K,[4] giving it the white-hued glow of an A-type star. It is roughly 23% of the way through its lifetime on the main sequence of core hydrogen burning stars.[4]

References

  1. 1 2 3 4 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 3 "65 Ari". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-07-18.
  3. 1 2 Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
  4. 1 2 Zorec, J.; Royer, F. (January 2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691.
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