Observation data Epoch J2000 Equinox J2000 |
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Constellation | Ara |
Right ascension | 16h 40m 44.4002s |
Declination | -51° 28′ 41.737″ |
Apparent magnitude (V) | 6.295 |
Characteristics | |
Spectral type | A9V |
U−B color index | 1.13 |
B−V color index | 0.321 ± 0.006 |
Variable type | Gamma Doradus variable |
Astrometry | |
Proper motion (μ) | RA: 12.43 mas/yr Dec.: 130.1 mas/yr |
Parallax (π) | 20.48 ± 0.89 mas |
Distance | 159 ± 7 ly (49 ± 2 pc) |
Absolute magnitude (MV) | 6.578 |
Details | |
Mass | 3.1 M☉ |
Radius | 2.1 R☉ |
Luminosity | 0.8 L☉ |
Temperature | 7,500–10,000 K |
Other designations | |
Database references | |
SIMBAD | data |
Data sources: | |
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
HD 149989 or V872 Arae is a variable star of Gamma Doradus type.
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