| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) |
|
|---|---|
| Constellation | Columba |
| Right ascension | 05h 39m 38.94103s[1] |
| Declination | −34° 04′ 26.7950″[1] |
| Apparent magnitude (V) | 2.645[2] |
| Characteristics | |
| Spectral type | B7 IV[3] |
| U−B color index | −0.44[2] |
| B−V color index | −0.125[2] |
| R−I color index | −0.09[4] |
| Astrometry | |
| Radial velocity (Rv) | +35.0[5] km/s |
| Proper motion (μ) | RA: −1.58[1] mas/yr Dec.: −24.82[1] mas/yr |
| Parallax (π) | 12.48 ± 0.36[1] mas |
| Distance | 261 ± 8 ly (80 ± 2 pc) |
| Absolute magnitude (MV) | −1.9 |
| Details | |
| Mass | 4.5[6] M☉ |
| Radius | 5.8[7] R☉ |
| Luminosity (bolometric) | 1,000[6] L☉ |
| Surface gravity (log g) | 3.73[7] cgs |
| Temperature | 12,963[7] K |
| Rotational velocity (v sin i) | 176[8] km/s |
| Other designations | |