Q Centauri
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 41m 44.772s |
| Declination | −54° 33′ 33.93″ |
| Apparent magnitude (V) | +4.99 (+5.7/+7.1) |
| Characteristics | |
| Spectral type | B8Vn/A0V |
| U−B color index | −0.23 |
| B−V color index | −0.05 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +10 km/s |
| Proper motion (μ) | RA: -42.33 ± 0.60 mas/yr Dec.: -24.26 ± 0.53 mas/yr |
| Parallax (π) | 12.02±0.69 mas |
| Distance | 270 ± 20 ly (83 ± 5 pc) |
| Absolute magnitude (MV) | +0.39 (+1.1/+2.5) |
| Other designations | |
| HR 5141, HD 118991, CP−53°5725, HIP 66821, SAO 241076, GC 18495, CCDM J13417-5434 | |
| Database references | |
| SIMBAD | data |
Q Centauri (Q Cen) is a binary star in the constellation Centaurus. It has a combined apparent magnitude of +4.99 and is approximately 270 light years from Earth.
The primary component, Q Centauri A, is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.7. Its companion, Q Centauri B, is a white A-type main sequence dwarf with an apparent magnitude of +7.1. The two stars are separated by 5.5 arcseconds on the sky.