| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 00h 31m 25.6379s |
| Declination | +33° 34′ 53.8934″ |
| Apparent magnitude (V) | 5.88 |
| Characteristics | |
| Spectral type | K1III + F8 |
| B−V color index | 1.13 |
| Astrometry | |
| Radial velocity (Rv) | 3.398±0.114 km/s |
| Proper motion (μ) | RA: 50.761±0.138 mas/yr Dec.: −10.813±0.166 mas/yr |
| Parallax (π) | 8.6835 ± 0.1026 mas |
| Distance | 376 ± 4 ly (115 ± 1 pc) |
| Details | |
| Luminosity | 70.21 L☉ |
| Temperature | 4,781 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
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.
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
- ^ 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.
- ^ 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.
- ^ 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.
- ^ "BDS+258". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 4, 2018.
External links
