HD 2767 is the primary component of a double star located 115 parsecs (380 ly) away in the constellation Andromeda. It is a red giant with a spectral type of K1III and an apparent magnitude of 5.88, thus is visible by the naked eye under favourable conditions.[2]

The secondary is named BD+32 81, has an apparent magnitude of 9.28, and is an F-type star; it shares radial velocity, parallax and proper motion with the primary component. The distance from the primary is estimated as 6,536 AU,[2] while their separation in the sky is 56 arcseconds.[4]

References

  1. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ a b c d e f Halbwachs, J. -L; Mayor, M.; Udry, S. (2017). "Double stars with wide separations in the AGK3 - II. The wide binaries and the multiple systems". Monthly Notices of the Royal Astronomical Society. 464 (4): 4966. arXiv:1610.04423. Bibcode:2017MNRAS.464.4966H. doi:10.1093/mnras/stw2683. S2CID 119181622.
  3. ^ a b 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. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352.
  4. ^ "BDS+258". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 4, 2018.


Allikas: https://en.wikipedia.org/wiki/HD_2767
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