J Centauri
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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus[1] |
| Right ascension | Template:RA[2] |
| Declination | Template:DEC[2] |
| Apparent magnitude (V) | +4.505[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | B3V[4] |
| U−B Template:Engvar | −0.62[5] |
| B−V Template:Engvar | −0.13[5] |
| Astrometry | |
| Radial velocity (Rv) | +6.0[6] km/s |
| Proper motion (μ) | RA: −29.518[2] mas/yr Dec.: −21.698[2] mas/yr |
| Parallax (π) | 8.8824±0.1293 mas[2] |
| Distance | Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc) |
| Absolute magnitude (MV) | −0.66[1] |
| Details | |
| Mass | 4.1[2][7] Template:Solar mass |
| Radius | 3.6[2] Template:Solar radius |
| Luminosity | 265[7] Template:Solar luminosity |
| Surface gravity (log g) | 3.97[2] cgs |
| Temperature | 24,757[7] K |
| Rotational velocity (v sin i) | 223[8] km/s |
| Age | 15.4[9] Myr |
| Metallicity [Fe/H] | {{{metal_fe2}}} dex |
| Other designations | |
| HR 5035, HD 116087, CD−60°4640, FK5 1347, HIP 65271, SAO 252284, GC 18087, CCDM J13226-6059[3] | |
| Database references | |
| SIMBAD | data |
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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.[8] It is believed to be a binary star system.[10]
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.[11]
References
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