| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Centaurus |
| Right ascension | 14h41m57.6s |
| Declination | −37°47′37″ |
| Apparent magnitude (V) | +4.01 |
| Characteristics | |
| Spectral type | B3V |
| U−B color index | −0.70 |
| B−V color index | −0.17 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +1 km/s |
| Proper motion (μ) | RA: −29.56 mas/yr Dec.: −30.68 mas/yr |
| Parallax (π) | 10.69 ± 0.72 mas |
| Distance | 305 ly (93.5 pc) |
| Absolute magnitude (MV) | −0.84 |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 129116, also known by its Bayer designation b Centauri (b Cen), is a star in the constellation Centaurus.
b Centauri is a blue-white B-type main sequence dwarf with an apparent magnitude of +4.01. It is approximately 305 light years from Earth.
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