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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h31m 49.09850s[1] |
| Declination | −46° 02′ 12.4311″[1] |
| Apparent magnitude (V) | 6.048[2] |
| Characteristics | |
| Spectral type | F8/G0Ib[3] |
| B−V color index | +0.83[3] |
| Astrometry | |
| Radial velocity (Rv) | −29.0[4] km/s |
| Proper motion (μ) | RA: +1.810[1] mas/yr Dec.: −3.806[1] mas/yr |
| Parallax (π) | 1.7610 ± 0.0460 mas[1] |
| Distance | 1,850 ± 50 ly (570 ± 10 pc) |
| Details | |
| Mass | 5.8[1] M☉ |
| Radius | 38[1] R☉ |
| Luminosity | 1,142[1] L☉ |
| Surface gravity (log g) | 1.89[1] cgs |
| Temperature | 5,305[1] K |
| Rotational velocity (v sin i) | 9.5[3] km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 158476 is a supergiant star in the southern constellationofAra. There is a faint magnitude 10.5 companion at an angular separation of 20.0″ along a position angle of 209° (as of 2013).[5]
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