2 Centauri
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 49m 26.72s |
| Declination | −34° 27′ 02.8″ |
| Apparent magnitude (V) | +4.19 |
| Characteristics | |
| Spectral type | M5III |
| U−B color index | +1.44 |
| B−V color index | +1.49 |
| Variable type | semiregular |
| Astrometry | |
| Radial velocity (Rv) | +40.7 ± 0.7 km/s |
| Proper motion (μ) |
RA: -41.68 ± 0.23 mas/yr Dec.: -59.77 ± 0.18 mas/yr |
| Parallax (π) | 17.82 ± 0.21mas |
| Distance | 183 ± 2 ly (56.1 ± 0.7 pc) |
| Absolute magnitude (MV) | +0.51 |
| Other designations | |
| Database references | |
| SIMBAD | data |
2 Centauri is a star in the constellation Centaurus.
2 Centauri is a M-type red giant with a mean apparent magnitude of +4.19. It is approximately 183 light years from Earth. It is classified as a semiregular variable star and its brightness varies from magnitude +4.16 to +4.26 with a period of 12. days.
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