Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Centaurus |
Right ascension | 14h 22m 37.07301s[1] |
Declination | −58° 27′ 32.8193″[1] |
Apparent magnitude (V) | 4.76[2] (5.09 + 6.94)[3] |
Characteristics | |
Spectral type | G9III + F5V[3] |
B−V color index | 0.795±0.003[2]/0.45[4] |
Astrometry | |
Radial velocity (Rv) | +14.6±2.8[2] km/s |
Proper motion (μ) | RA: −43.66±0.90[1] mas/yr Dec.: +17.22±0.76[1] mas/yr |
Parallax (π) | 8.51 ± 1.11 mas[1] |
Distance | approx. 380 ly (approx. 120 pc) |
Absolute magnitude (MV) | −0.55[2] |
Details | |
A | |
Rotational velocity (v sin i) | 5.5[4] km/s |
Age | 3.6[4] Gyr |
B | |
Rotational velocity (v sin i) | 6.3[4] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 125628 is a binary star[3] system in the constellation Centaurus. It is faintly visible to the naked eye with a combined apparent visual magnitude of 4.76.[2] The distance to this system is approximately 380 light years based on parallax. It is drifting further away from the Sun with a radial velocity of +15 km/s.[2] The absolute magnitude is −0.55.[2]
The primary component of this system, component A, is an aging giant star with a stellar classification of G9III[3] and a visual magnitude of 5.09.[3] The secondary companion, designated component B, is a magnitude 6.94[3] star located at an angular separation of 9.10″ from the primary, along a position angle of 157°, as of 2016.[6] It is an F-type main-sequence star with a class of F5V.[3]