| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 18m 47.0097s[1] |
| Declination | +37° 23′ 10.592″[1] |
| Apparent magnitude (V) | 6.497[2] |
| Characteristics | |
| Spectral type | kA5hF1mF2[3] |
| B−Vcolor index | 0.217[2] |
| Astrometry | |
| Radial velocity (Rv) | 5.0±2.90[4] km/s |
| Proper motion (μ) | RA: −8.659±0.107[1]mas/yr Dec.: −3.016±0.120[1]mas/yr |
| Parallax (π) | 7.78±0.70 mas[1] |
| Distance | 420 ± 40 ly (130 ± 10 pc) |
| Details | |
| A | |
| Radius | 3.67[5] R☉ |
| Luminosity | 43[5] L☉ |
| Temperature | 7,734[5] K |
| B | |
| Radius | 1.3[6] R☉ |
| Luminosity | 2.3[6] L☉ |
| Temperature | 6,206[6] K |
| Other designations | |
| HR 379,BD+36 220,SAO 54592,HIP 6140,WDS J01188+3724,ADS 1055 | |
| Database references | |
| SIMBAD | A |
| B | |
HD 7853 is adouble star in theconstellationAndromeda. With an apparent magnitude of 6.46, it can barely be seen with the naked eye even on the best of nights. The system is located approximately 130 parsecs (420 ly) distant, and the brighter star is anAm star, meaning that it has unusual metallic absorption lines.[7] The spectral classification of kA5hF1mF2 means that it would have a spectral class of A5 if it were based solely on thecalcium K line, F2 if based on the lines of other metals, and F1 if based on the hydrogenabsorption lines.[3] The two components are sixarc-seconds apart and the secondary is three magnitudes fainter than the primary.[8]
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 | This binary or multiple star system–related article is astub. You can help Wikipedia byexpanding it. |
