HD 151566
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 16h 50m 36.07960s |
| Declination | −50° 02′ 41.8040″ |
| Apparent magnitude (V) | 6.45 (7.17 + 7.33) |
| Characteristics | |
| Spectral type | A5III + F7III |
| U−B color index | +0.07 |
| B−V color index | +0.33 |
| Astrometry | |
| Radial velocity (Rv) | 24.6±1.6 km/s |
| Proper motion (μ) | RA: -7.97 mas/yr Dec.: -2.84 mas/yr |
| Parallax (π) | 6.19±1.22 mas |
| Distance | approx. 500 ly (approx. 160 pc) |
| Absolute magnitude (MV) | +0.51 |
| Details | |
| A | |
| Mass | 1.8 M☉ |
| Radius | 2.6 R☉ |
| Luminosity | 15 L☉ |
| Temperature | 7,053 K |
| Age | 1.3 Gyr |
| B | |
| Mass | 1.6 M☉ |
| Radius | 2.7 R☉ |
| Luminosity | 18 L☉ |
| Surface gravity (log g) | 3.78 cgs |
| Temperature | 7,217 K |
| Other designations | |
| CD−49°10998, HD 151566, HIP 82418, HR 6236 | |
| Database references | |
| SIMBAD | data |
HD 151566 is double star in the southern constellation of Ara. As of 1991, the pair had an angular separation of 3.10″ along a position angle of 42°.