J Centauri
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 22m 37.9331s |
| Declination | −60° 59′ 18.170″ |
| Apparent magnitude (V) | +4.505 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | B3V |
| U−B color index | −0.62 |
| B−V color index | −0.13 |
| Astrometry | |
| Radial velocity (Rv) | +6.0 km/s |
| Proper motion (μ) | RA: −29.518 mas/yr Dec.: −21.698 mas/yr |
| Parallax (π) | 8.8824±0.1293 mas |
| Distance | 367 ± 5 ly (113 ± 2 pc) |
| Absolute magnitude (MV) | −0.66 |
| Details | |
| Mass | 4.1 M☉ |
| Radius | 3.6 R☉ |
| Luminosity | 265 L☉ |
| Surface gravity (log g) | 3.97 cgs |
| Temperature | 24,757 K |
| Rotational velocity (v sin i) | 223 km/s |
| Age | 15.4 Myr |
| Other designations | |
| HR 5035, HD 116087, CD−60°4640, FK5 1347, HIP 65271, SAO 252284, GC 18087, CCDM J13226-6059 | |
| Database references | |
| SIMBAD | data |
J Centauri (J Cen) is a star in the constellation Centaurus. Its mean apparent magnitude is 4.5, making it easily visible to the naked eye. It is approximately 350 light years from Earth.
J Centauri is a spectral class B3V main sequence star with a luminosity 265 times that of the Sun. The temperature of the star's photosphere is nearly 25,000 K. The rotation velocity at the equator is at least 223 km/s. It is believed to be a binary star system.
This star may be a member of the Scorpio-Centaurus OB association (Sco OB2). This is one of the nearest regions of recent star formation.