| 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]
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