Observation data Epoch J2000 Equinox J2000 |
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Constellation | Ara |
Right ascension | 17h 14m 13.4095s |
Declination | -56° 53′ 18.695″ |
Apparent magnitude (V) | 6.129 |
Characteristics | |
Spectral type | M1/M2II/III+A |
U−B color index | 1.34 |
B−V color index | 1.78 |
Variable type | ellipsoidal variable |
Astrometry | |
Radial velocity (Rv) | -34 km/s |
Proper motion (μ) | RA: 4.22 mas/yr Dec.: -5.91 mas/yr |
Parallax (π) | 2.54 ± 0.76 mas |
Distance | approx. 1300 ly (approx. 400 pc) |
Absolute magnitude (MV) | 7.864 |
Details | |
Mass | 0.4 M☉ |
Radius | 0.5 R☉ |
Luminosity | 0.04 L☉ |
Temperature | 2,000–3,500 K |
Other designations | |
Database references | |
SIMBAD | data |
Data sources: | |
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
HD 155341 or V829 Arae is an ellipsoidal variable star.
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