| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Andromeda |
| Right ascension | 01h 02m 54.26s [1] |
| Declination | +41° 20′ 42.6″ [1] |
| Apparent magnitude (V) | 5.942 |
| Characteristics | |
| Spectral type | A5m |
| U−B color index | 0.1 |
| B−V color index | 0.16 |
| Astrometry | |
| Radial velocity (Rv) | 4.4 km/s |
| Proper motion (μ) | RA: -17.19 ± 0.30 [1] mas/yr Dec.: -17.00 ± 0.26 [1] mas/yr |
| Parallax (π) | 9.32 ± 0.32[1] mas |
| Distance | 350 ± 10 ly (107 ± 4 pc) |
| Absolute magnitude (MV) | 6.108 |
| Details | |
| Mass | 3.1 M☉ |
| Radius | 2.1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7.500–10.000 K |
| Metallicity | ? |
| Rotation | 0.291474423593 Year |
| Age | ? years |
| Orbit | |
| Companion | 39 Andromedae B |
| Semimajor axis (a) | 20.5" |
| Inclination (i) | 4° |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Database references | |
| SIMBAD | data |
39 Andromedae or (ADS 863 A) is a star in the constellation Andromeda. Its apparent magnitude is 5.95.
| NAME | Right ascension | Declination | Apparent magnitude (V) | Spectral type | Database references |
|---|---|---|---|---|---|
| ADS 863 B (BD+40 209B) | 01h 02m 54.4s | +41° 21' 02 | 12.3 | Simbad |
|
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