HD 156331
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 19m 30.5156s |
| Declination | -50° 03′ 49.545″ |
| Apparent magnitude (V) | 6.281 |
| Characteristics | |
| Spectral type | F8III+B9V |
| B−V color index | 0.41 |
| Astrometry | |
| Radial velocity (Rv) | 10.81 km/s |
| Proper motion (μ) | RA: 7.16 mas/yr Dec.: -32.33 mas/yr |
| Parallax (π) | 17.95 ± 0.8 mas |
| Distance | 182 ± 8 ly (56 ± 2 pc) |
| Absolute magnitude (MV) | 6.652 |
| Details | |
| Mass | 1.7 M☉ |
| Radius | 1.4 R☉ |
| Luminosity | 0.9 L☉ |
| Temperature | 6,000–7,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 156331 is double star.
References
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