64 Andromedae
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 02h 24m 24.91599s |
| Declination | +50° 00′ 23.5560″ |
| Apparent magnitude (V) | 5.19 |
| Characteristics | |
| Evolutionary stage | red giant branch |
| Spectral type | G8III |
| U−B color index | +0.753 |
| B−V color index | +0.973 |
| Astrometry | |
| Radial velocity (Rv) | –13.63 km/s |
| Proper motion (μ) | RA: +24.618±0.089 mas/yr Dec.: −36.335±0.117 mas/yr |
| Parallax (π) | 8.0682±0.0972 mas |
| Distance | 404 ± 5 ly (124 ± 1 pc) |
| Absolute magnitude (MV) | −0.25 |
| Details | |
| Mass | 3.12±0.19 M☉ |
| Radius | 15.90±0.56 R☉ |
| Luminosity | 135.6±8.8 L☉ |
| Surface gravity (log g) | 2.55±0.05 cgs |
| Temperature | 4,944±33 K |
| Metallicity [Fe/H] | −0.03±0.10 dex |
| Rotational velocity (v sin i) | 0.69 km/s |
| Age | 350±60 Myr |
| Other designations | |
| 64 And, BD+49°649, HD 14770, HIP 11220, HR 694, SAO 38005, PPM 27578 | |
| Database references | |
| SIMBAD | data |
64 Andromedae, abbreviated 64 And, is a single star in the northern constellation of Andromeda. With a spectral type G8III, it is a deep-yellow coloured G-type giant approximately 404 light years from Earth with an apparent magnitude of 5.19. The star is moving closer to the Earth with a heliocentric radial velocity of –13.6 km/s.
This star is estimated to be 350 million years old with a negligible rotation rate, showing a projected rotational velocity of 0.69 km/s. It has a little more than 3 times the mass of the Sun and has expanded to 16 times the Sun's radius. 64 And is radiating 136 times the luminosity of the Sunfrom its enlarged photosphere at an effective temperature of 4,944 K