  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 31m 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 constellation of Ara. 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]
- ^ a b c d e f g h i j Cite error: The named reference
dr3was invoked but never defined (see the help page). - ^ Paunzen, E. (2015). "A new catalogue of Strömgren-Crawford uvbyβ photometry". Astronomy & Astrophysics. 580: A23. arXiv:1506.04568. Bibcode:2015A&A...580A..23P. doi:10.1051/0004-6361/201526413. S2CID 73623700.
- ^ a b c Cite error: The named reference
aaa395_97was invoked but never defined (see the help page). - ^ Cite error: The named reference
gontcharov2006was invoked but never defined (see the help page). - ^ Cite error: The named reference
WDSC2014was invoked but never defined (see the help page).