HD 151566
Double Star in the constellation Ara / From Wikipedia, the free encyclopedia
HD 151566 is double star in the southern constellation of Ara. As of 1991, the pair had an angular separation of 3.10″ along a position angle of 42°.[3]
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Ara |
Right ascension | 16h 50m 36.07960s[1] |
Declination | −50° 02′ 41.8040″[1] |
Apparent magnitude (V) | 6.45[2] (7.17 + 7.33)[3] |
Characteristics | |
Spectral type | A5III + F7III[4] |
U−B color index | +0.07[2] |
B−V color index | +0.33[2] |
Astrometry | |
Radial velocity (Rv) | 24.6±1.6[5] km/s |
Proper motion (μ) | RA: -7.97[1] mas/yr Dec.: -2.84[1] mas/yr |
Parallax (π) | 6.19 ± 1.22 mas[1] |
Distance | approx. 500 ly (approx. 160 pc) |
Details | |
Luminosity | 51.5[6] L☉ |
Temperature | 7,000[6] K |
Other designations | |
Database references | |
SIMBAD | data |
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