| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 36m 27.1998s |
| Declination | +48° 43′ 21.994″ |
| Apparent magnitude (V) | 6.22 |
| Characteristics | |
| Spectral type | K1III |
| B−V color index | 1.21 |
| Variable type | BY Draconis |
| Astrometry | |
| Radial velocity (Rv) | -43.2 km/s |
| Proper motion (μ) | RA: -16.36 mas/yr Dec.: -18.69 mas/yr |
| Parallax (π) | 7.77 ± 0.82 mas |
| Distance | approx. 420 ly (approx. 130 pc) |
| Absolute magnitude (MV) | 7.47 |
| Details | |
| Mass | 0.8 M☉ |
| Radius | 0.9 R☉ |
| Luminosity | 0.4 L☉ |
| Temperature | 3,500–5,000 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
OP Andromedae is a variable star.