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θ Centauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 14h06m41.3s
Declination -36°22′07.3″
Apparent magnitude (V) +2.06
Characteristics
Spectral type K0IIIb
U-B color index +0.88
B-V color index +1.01
Variable type none
Astrometry
Radial velocity (Rv) +1.3 km/s
Proper motion (μ) RA: -519.29 mas/yr
Dec.: -517.87 mas/yr
Parallax (π) 53.52 ± 0.79 mas
Distance 60.9 ± 0.9 ly
(18.7 ± 0.3 pc)
Absolute magnitude (MV) +0.70
Details
Mass 4 M
Radius 16 R
Luminosity 45 L
Temperature 4,500 K
Metallicity ?
Rotation ?
Age ? years
Other designations
Menkent, Haratan, Gl 539, HR 5288, CD−35°9260, CP−35°6109, HD 123139, LHS 2858, GCTP 3206.00, SAO 205188, FK5 520, HIP 68933, GC 19033, CCDM J14067-3622

Theta Centauri (θ Cen / θ Centauri) is a star in the constellation Centaurus. It is also called an Arabic name: Menkent ("shoulder of the Centaur"). It is an orange K-type giant with an apparent magnitude of +2.06 and is approximately 60.94 light years from Earth.

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θ Centauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension 14h06m41.3s
Declination -36°22′07.3″
Apparent magnitude (V)+2.06
Characteristics
Spectral typeK0IIIb
U−B color index+0.88
B−V color index+1.01
Variable typenone
Astrometry
Radial velocity (Rv)+1.3 km/s
Proper motion (μ) RA: -519.29 mas/yr
Dec.: -517.87 mas/yr
Parallax (π)53.52 ± 0.79 mas
Distance60.9 ± 0.9 ly
(18.7 ± 0.3 pc)
Absolute magnitude (MV)+0.70
Details
Mass4 M
Radius16 R
Luminosity45 L
Temperature4,500 K
Other designations
Menkent, Haratan, Gl 539, HR 5288, CD−35°9260, CP−35°6109, HD 123139, LHS 2858, SAO 205188, FK5 520, HIP 68933.

Theta Centauri (θ Cen, θ Centauri) is a star in the constellation Centaurus. It is also has the traditional Arabic name Menkent ("shoulder of the Centaur"). It is an orange K-type giant with an apparent magnitude of +2.06 and is approximately 60.94 light years from Earth.



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