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Star in the constellation Ara From Wikipedia, the free encyclopedia
HD 157662 is a bright giant star in the southern constellation of Ara. It has a magnitude 10.91 companion at an angular separation of 76.4″ along a position angle of 159°.[6]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Ara |
Right ascension | 17h 27m 12.46093s[1] |
Declination | −50° 37′ 49.3379″[1] |
Apparent magnitude (V) | 5.905[2] |
Characteristics | |
Spectral type | B9II[3] |
U−B color index | +0.055[4] |
B−V color index | +0.105[4] |
Astrometry | |
Radial velocity (Rv) | +11.0[5] km/s |
Proper motion (μ) | RA: +0.19[1] mas/yr Dec.: −2.53[1] mas/yr |
Parallax (π) | 1.10 ± 0.38 mas[1] |
Distance | approx. 3,000 ly (approx. 900 pc) |
Details | |
Mass | 7.87±1.68[2] M☉ |
Luminosity | 8,214[2] L☉ |
Temperature | 10,650[2] K |
Other designations | |
Database references | |
SIMBAD | data |
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