| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Ara |
| Right ascension | 16h 56m 08.8405s |
| Declination | -50° 40′ 29.244″ |
| Apparent magnitude (V) | 6.33 |
| Characteristics | |
| Spectral type | B3Vnpe |
| B−V color index | -0,02 |
| Variable type | Spectral line |
| Astrometry | |
| Radial velocity (Rv) | 19 km/s |
| Proper motion (μ) | RA: -10.21 mas/yr Dec.: -9.55 mas/yr |
| Parallax (π) | 4.34 ± 0.82 mas |
| Distance | approx. 800 ly (approx. 230 pc) |
| Absolute magnitude (MV) | 6.33 |
| Details | |
| Mass | 18 M☉ |
| Radius | 7 R☉ |
| Luminosity | 2.1 L☉ |
| Temperature | 10,000–30,000 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
HD 152478 or V846 Arae is an emission-line star.