Nu1 Coronae Borealis

Nu2 Coronae Borealis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Corona Borealis
Right ascension 16h 22m 29.21855s [1]
Declination +33° 42 12.5274 [1]
Apparent magnitude (V) 5.39[1]
Characteristics
Spectral type K5III
Astrometry
Parallax (π)5.49 ± 0.24[2] mas
Distance590 ± 30 ly
(182 ± 8 pc)
Other designations
21 Coronae Borealis, HR 6108, HD 147767, HIP 80214 [1]

Nu2 Coronae Borealis, is a star located in the constellation Corona Borealis. It is a red giant of spectral type M2III with an apparent visual magnitude of +5.20.[1]

Located around 590±30 light-years distant, it shines with a luminosity approximately 530 times that of the Sun and has a surface temperature of 4049 K.[3]

References

  1. 1 2 3 4 5 "Nu2 Coronae Borealis". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 November 2014.
  2. van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics 474 (2): 653–64. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
  3. McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
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