3 Centauri
| Observation data Epoch J2000.0 Equinox J2000.0 | ||
|---|---|---|
| Constellation | Centaurus | |
| Right ascension | 13h 51m 49.60s[1] | |
| Declination | −32° 59′ 38.7″[1] | |
| Apparent magnitude (V) | 4.32[2] (4.52 + 5.97)[3] | |
| Characteristics | ||
| Spectral type | B5 III-IVp[4] + B8 V[5] | |
| B−V color index | −0.146±0.003[2] | |
| Variable type | Eclipsing?[6] | |
| Astrometry | ||
| Radial velocity (Rv) | +7.5±1.6[7] km/s | |
| Absolute magnitude (MV) | −0.46[2] | |
| A | ||
Distance | 290 ± 10 ly (90 ± 3 pc) | |
| B | ||
Distance | 318 ± 4 ly (97 ± 1 pc) | |
Semi-amplitude (K1)(primary) | 17 km/s | |
| Details | ||
| 3 Cen A | ||
Rotational velocity (v sin i) | 135[5] km/s | |
HR 5211, SAO 204917 | ||
| Database references | ||
| SIMBAD | data | |
| A | ||
| B | ||
3 Centauri is a
variable star designation V983 Centauri.[6]
The brighter member, designated component A, is a magnitude 4.52emission line features are also visible.[15]
The magnitude 5.97mas. The visible component is a B-type main-sequence star with a class of B8 V.[5]
References
- ^ S2CID 18759600. Vizier catalog entry
- ^ S2CID 119257644.
- ^ hdl:11336/4892. A138.
- ^ S2CID 30530913.
- ^ S2CID 55586789.
- ^ S2CID 125853869.
- S2CID 119231169.
- ^ .
- ^ .
- ^ S2CID 119387088.
- ^ S2CID 118629873.
- ^ . 40.
- S2CID 425754.
- ^ a b "3 Cen". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-04-11.
- .
