HD 2767

HD 2767
Observation data
Epoch J2000      Equinox ICRS
Constellation Andromeda
Right ascension 00h 31m 25.6379s
Declination +33° 34′ 53.892″
Apparent magnitude (V) 5.88
Characteristics
Evolutionary stage red giant branch
Spectral type K1III
B−V color index 1.13
Astrometry
Radial velocity (Rv)3.398±0.114 km/s
Proper motion (μ) RA: 50.788±0.049 mas/yr
Dec.: −10.707±0.034 mas/yr
Parallax (π)8.5954±0.0582 mas
Distance379 ± 3 ly
(116.3 ± 0.8 pc)
Absolute magnitude (MV)+0.56
Details
Mass2.86 M☉
Radius14.7 R☉
Luminosity51 L☉
Surface gravity (log g)2.54 cgs
Temperature4,023 K
Age376 Myr
Other designations
HIP 2475, HR 122, BD+32°80, SAO 53956
Database references
SIMBADdata

HD 2767 is the primary component of a double star located 116 parsecs (379 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.

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, while their separation in the sky is 56 arcseconds.

References

  1. 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
  2. 1 2 3 4 5 6 7 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. 1 2 3 4 5 6 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.
  4. 1 2 Fouesneau, M.; Andrae, R.; Dharmawardena, T.; Rybizki, J.; Bailer-Jones, C. A. L.; Demleitner, M. (2022). "Astrophysical parameters from Gaia DR2, 2MASS, and AllWISE". Astronomy and Astrophysics. 662: A125. arXiv:2201.03252. Bibcode:2022A&A...662A.125F. doi:10.1051/0004-6361/202141828.
  5. 1 2 3 Hon, Marc; Huber, Daniel; Kuszlewicz, James S.; Stello, Dennis; Sharma, Sanjib; Tayar, Jamie; Zinn, Joel C.; Vrard, Mathieu; Pinsonneault, Marc H. (2021). "A "Quick Look" at All-sky Galactic Archeology with TESS: 158,000 Oscillating Red Giants from the MIT Quick-look Pipeline". The Astrophysical Journal. 919 (2): 131. arXiv:2108.01241. Bibcode:2021ApJ...919..131H. doi:10.3847/1538-4357/ac14b1.
  6. ↑ "BDS+258". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 4, 2018.