Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Ara |
Right ascension | 17h 03m 41.68344s [1] |
Declination | −47° 09′ 38.0565″ [1] |
Apparent magnitude (V) | 6.07 [2] |
Characteristics | |
Spectral type | A5V [3] |
B−V color index | +0.07 [4] |
Astrometry | |
Radial velocity (Rv) | 3.8±0.5 [2] km/s |
Proper motion (μ) |
RA: +0.04
[1]
mas/
yr Dec.: +5.36 [1] mas/ yr |
Parallax (π) | 6.61 ± 0.44 mas [1] |
Distance | 490 ± 30
ly (150 ± 10 pc) |
Details | |
Luminosity | 66.6 [5] L☉ |
Temperature | 8,346 [5] K |
Rotational velocity (v sin i) | 70 [6] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 153791 is a double star in the southern constellation of Ara. The primary is a sixth magnitude A-type main sequence star. [2] It has a magnitude 12.3 companion at an angular separation of 6.0 ″ along a position angle of 249°, as of 1999. [7]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Ara |
Right ascension | 17h 03m 41.68344s [1] |
Declination | −47° 09′ 38.0565″ [1] |
Apparent magnitude (V) | 6.07 [2] |
Characteristics | |
Spectral type | A5V [3] |
B−V color index | +0.07 [4] |
Astrometry | |
Radial velocity (Rv) | 3.8±0.5 [2] km/s |
Proper motion (μ) |
RA: +0.04
[1]
mas/
yr Dec.: +5.36 [1] mas/ yr |
Parallax (π) | 6.61 ± 0.44 mas [1] |
Distance | 490 ± 30
ly (150 ± 10 pc) |
Details | |
Luminosity | 66.6 [5] L☉ |
Temperature | 8,346 [5] K |
Rotational velocity (v sin i) | 70 [6] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 153791 is a double star in the southern constellation of Ara. The primary is a sixth magnitude A-type main sequence star. [2] It has a magnitude 12.3 companion at an angular separation of 6.0 ″ along a position angle of 249°, as of 1999. [7]