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 |
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]
vanLeeuwen2007
was invoked but never defined (see the help page).mnrassa34_7
was invoked but never defined (see the help page).WDSC2014
was invoked but never defined (see the help page).Hoffleit1991
was invoked but never defined (see the help page).Gontcharov
was invoked but never defined (see the help page).Mcdonald2012
was invoked but never defined (see the help page).