Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Centaurus |
Right ascension | 13h 22m 37.9371s [1] |
Declination | –60° 59′ 18.215″ [1] |
Apparent magnitude (V) | +4.505 [2] |
Characteristics | |
Spectral type | B3V [3] |
U−B color index | –0.62 [4] |
B−V color index | –0.13 [4] |
Variable type | β Cep |
Astrometry | |
Radial velocity (Rv) | +6.0 [5] km/s |
Proper motion (μ) |
RA: −35.50
[1]
mas/
yr Dec.: −15.19 [1] mas/ yr |
Parallax (π) | 9.20 ± 0.58 mas [1] |
Distance | 350 ± 20
ly (109 ± 7 pc) |
Details | |
Luminosity | 500 [6] L☉ |
Surface gravity (log g) | 4.22 [6] cgs |
Temperature | 23,970 ± 3,080 [7] K |
Rotational velocity (v sin i) | 223 [8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
J Centauri (J Cen) is a star in the constellation Centaurus. It is approximately 350 light years from Earth.
J Centauri is a spectral class B3V main sequence star with a mean apparent magnitude of 4.5 and a luminosity 500 times that of the Sun. The temperature of the star's photosphere is nearly 24,000 K. The rotation velocity at the equator is at least 223 km/s. [8] It is believed to be a binary star system. [9]
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. [10]
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Centaurus |
Right ascension | 13h 22m 37.9371s [1] |
Declination | –60° 59′ 18.215″ [1] |
Apparent magnitude (V) | +4.505 [2] |
Characteristics | |
Spectral type | B3V [3] |
U−B color index | –0.62 [4] |
B−V color index | –0.13 [4] |
Variable type | β Cep |
Astrometry | |
Radial velocity (Rv) | +6.0 [5] km/s |
Proper motion (μ) |
RA: −35.50
[1]
mas/
yr Dec.: −15.19 [1] mas/ yr |
Parallax (π) | 9.20 ± 0.58 mas [1] |
Distance | 350 ± 20
ly (109 ± 7 pc) |
Details | |
Luminosity | 500 [6] L☉ |
Surface gravity (log g) | 4.22 [6] cgs |
Temperature | 23,970 ± 3,080 [7] K |
Rotational velocity (v sin i) | 223 [8] km/s |
Other designations | |
Database references | |
SIMBAD | data |
J Centauri (J Cen) is a star in the constellation Centaurus. It is approximately 350 light years from Earth.
J Centauri is a spectral class B3V main sequence star with a mean apparent magnitude of 4.5 and a luminosity 500 times that of the Sun. The temperature of the star's photosphere is nearly 24,000 K. The rotation velocity at the equator is at least 223 km/s. [8] It is believed to be a binary star system. [9]
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. [10]