HD 131473
From Infogalactic: the planetary knowledge core
| 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] |
| Characteristics | |
| Spectral type | F9V[3] |
| U−B color index | +0.122[2] |
| B−V color index | +0.570[2] |
| Astrometry | |
| Radial velocity (Rv) | 20.8[4] km/s |
| Proper motion (μ) | RA: −22.72[1] mas/yr Dec.: +21.58[1] mas/yr |
| Parallax (π) | 20.99 ± 0.93[1] mas |
| Distance | 155 ± 7 ly (48 ± 2 pc) |
| Absolute magnitude (MV) | 2.98[5] |
| Details | |
| HD 131473 A | |
| Mass | 1.34[6] M☉ |
| Luminosity | 5.1[7] L☉ |
| Temperature | 5,870[7] K |
| Metallicity [Fe/H] | 0.19[5] dex |
| Age | 2.5[5] Gyr |
| HD 131473 B | |
| Mass | 1.19[6] M☉ |
| Orbit[8] | |
| 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° |
| 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 main sequence star with a stellar classification of F9V.[3]
References
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