HD 7853
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 18m 47.010s[1] |
| Declination | +37° 23′ 10.59″[1] |
| Apparent magnitude (V) | 6.46 |
| Characteristics | |
| Spectral type | A5m[2] |
| B−V color index | 0.23[2] |
| Astrometry | |
| Radial velocity (Rv) | 5.0[2] km/s |
| Proper motion (μ) | RA: -8.25 ± 0.75[1] mas/yr Dec.: -11.07 ± 0.63[1] mas/yr |
| Parallax (π) | 7.78 ± 0.70[1] mas |
| Distance | 420 ± 40 ly (130 ± 10 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
HD 7853 is a double star in the constellation Andromeda. With an apparent magnitude of 6.46, the stars can barely be seen with the naked eye even on the best of nights. The system is located approximately 128.5 parsecs (419 ly) distant, and the brighter star is an Am star, meaning that it has unusual metallic absorption lines.[2]
References
- 1 2 3 4 5 van Leeuwen, F. (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.Vizier catalog entry - 1 2 3 4 "HR 378". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 22 June 2014.
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