Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Boötes |
Right ascension | 14h 53m 23.34844s [1] |
Declination | +15° 42′ 18.602″ [1] |
Apparent magnitude (V) | 6.403
[2] (6.89 / 7.55) [3] |
Characteristics | |
Spectral type | F4IV / G1IV [4] |
U−B color index | +0.122 [2] |
B−V color index | +0.570 [2] |
Astrometry | |
Radial velocity (Rv) | 20.8 [5] km/s |
Proper motion (μ) |
RA: −22.72
[1]
mas/
yr Dec.: +21.58 [1] mas/ yr |
Parallax (π) | 20.99 ± 0.93 mas [1] |
Distance | 155 ± 7
ly (48 ± 2 pc) |
Absolute magnitude (MV) | 2.98 [6] |
Orbit [7] | |
Period (P) | 313 yr |
Semi-major axis (a) | 1.358″ |
Eccentricity (e) | 0.50 |
Inclination (i) | 108.5° |
Longitude of the node (Ω) | 12.5° |
Periastron epoch (T) | 1824.0 |
Argument of periastron (ω) (secondary) | 49° |
Details | |
HD 131473 A | |
Mass | 1.34 [8] M☉ |
Luminosity | 5.1 [9] L☉ |
Temperature | 5,870 [9] K |
Metallicity [Fe/H] | 0.19 [6] dex |
Age | 2.5 [6] Gyr |
HD 131473 B | |
Mass | 1.19 [8] M☉ |
Other designations | |
Database references | |
SIMBAD | data |
HD 131473 is a binary star system in the northern constellation of Boötes. The primary is an F-type subgiant with a stellar classification of F4IV, while its companion is a G-type subgiant with a stellar classification of G1IV. [4]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Boötes |
Right ascension | 14h 53m 23.34844s [1] |
Declination | +15° 42′ 18.602″ [1] |
Apparent magnitude (V) | 6.403
[2] (6.89 / 7.55) [3] |
Characteristics | |
Spectral type | F4IV / G1IV [4] |
U−B color index | +0.122 [2] |
B−V color index | +0.570 [2] |
Astrometry | |
Radial velocity (Rv) | 20.8 [5] km/s |
Proper motion (μ) |
RA: −22.72
[1]
mas/
yr Dec.: +21.58 [1] mas/ yr |
Parallax (π) | 20.99 ± 0.93 mas [1] |
Distance | 155 ± 7
ly (48 ± 2 pc) |
Absolute magnitude (MV) | 2.98 [6] |
Orbit [7] | |
Period (P) | 313 yr |
Semi-major axis (a) | 1.358″ |
Eccentricity (e) | 0.50 |
Inclination (i) | 108.5° |
Longitude of the node (Ω) | 12.5° |
Periastron epoch (T) | 1824.0 |
Argument of periastron (ω) (secondary) | 49° |
Details | |
HD 131473 A | |
Mass | 1.34 [8] M☉ |
Luminosity | 5.1 [9] L☉ |
Temperature | 5,870 [9] K |
Metallicity [Fe/H] | 0.19 [6] dex |
Age | 2.5 [6] Gyr |
HD 131473 B | |
Mass | 1.19 [8] M☉ |
Other designations | |
Database references | |
SIMBAD | data |
HD 131473 is a binary star system in the northern constellation of Boötes. The primary is an F-type subgiant with a stellar classification of F4IV, while its companion is a G-type subgiant with a stellar classification of G1IV. [4]