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HD 158476
Star in the constellation Ara / From Wikipedia, the free encyclopedia
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]
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
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 |
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