HD 3346
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 00h 36m 46.44107s |
| Declination | +44° 29′ 18.9202″ |
| Apparent magnitude (V) | 5.13 – 5.19 |
| Characteristics | |
| Spectral type | K6 IIIa (K5 - M0 III) |
| B−V color index | 1.587±0.005 |
| Variable type | SRS |
| Astrometry | |
| Radial velocity (Rv) | −33.46±0.22 km/s |
| Proper motion (μ) | RA: −37.121 mas/yr Dec.: +32.293 mas/yr |
| Parallax (π) | 4.7240±0.0894 mas |
| Distance | 690 ± 10 ly (212 ± 4 pc) |
| Absolute magnitude (MV) | −1.23 |
| Orbit | |
| Period (P) | 576.2±3.5 d |
| Eccentricity (e) | 0.30±0.06 |
| Periastron epoch (T) | 43787±22 MJD |
| Argument of periastron (ω) (secondary) | 279±15° |
| Semi-amplitude (K1) (primary) | 0.69±0.08 km/s |
| Details | |
| Radius | 69.98±2.98 R☉ |
| Luminosity | 979.2±76.65 L☉ |
| Surface gravity (log g) | 1.19±0.16 cgs |
| Temperature | 3909±170 K |
| Metallicity [Fe/H] | −0.00±0.10 dex |
| Other designations | |
| V428 Andromedae, BD+43°113, HD 3346, HIP 2900, HR 152, SAO 36509, PPM 43119 | |
| Database references | |
| SIMBAD | data |
HD 3346, also known as V428 Andromedae, is a binary star system in the northern constellation of Andromeda. It is a dim star but visible to the naked eye under suitable viewing conditions, having an apparent visual magnitude of 5.14. The distance to HD 3346 can be determined from its annual parallax shift of 4.72 mas. This yields a range of about 690 light-years (210 parsecs). At that distance the brightness of the system is diminished by an extinction of 0.16 magnitude due to interstellar dust. It is moving closer to the Earth with a heliocentric radial velocity of −33 km/s.