| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 07m 39.27s [1] |
| Declination | +46° 23′ 14.0″ [1] |
| Apparent magnitude (V) | 5.308 |
| Characteristics | |
| Spectral type | K5III |
| U−B color index | 1.72 |
| B−V color index | 1.41 |
| Astrometry | |
| Radial velocity (Rv) | -6.2 km/s |
| Proper motion (μ) | RA: -12.34 ± 0.20 [1] mas/yr Dec.: -31.01 ± 0.23 [1] mas/yr |
| Parallax (π) | 9.35 ± 0.32[1] mas |
| Distance | 350 ± 10 ly (107 ± 4 pc) |
| Absolute magnitude (MV) | 6.744 |
| Details | |
| Mass | ? M☉ |
| Radius | ? R☉ |
| Luminosity | ? L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Orbit | |
| Companion | 4 Andromedae B |
| Semimajor axis (a) | 48.2" |
| Inclination (i) | 347° |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
4 Andromedae is a star in the constellation Andromeda. Its apparent magnitude is 5.30.
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| 4 Andromedae B (BD+45 4149B) | 23h 07m 38.1s | +46° 24' 01 | 12.0 | Simbad |
|
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