D Centauri

D Centauri (D Cen) is a double star in the constellation Centaurus. The system has a combined apparent magnitude of +5.31 and is approximately 570 light years from Earth.

For d Centauri, see HD 117440.
D Centauri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Centaurus
Right ascension  12h 14m 02.697s[1]
Declination −45° 43′ 26.10″[1]
Apparent magnitude (V) +5.31
Characteristics
Spectral type K3III
U−B color index +1.59
B−V color index +1.43
Variable type none
Astrometry
Radial velocity (Rv)+7 km/s
Proper motion (μ) RA: -35.35 ± 0.37[1] mas/yr
Dec.: 5.56 ± 0.30[1] mas/yr
Parallax (π)5.71 ± 0.54[1] mas
Distance570 ± 50 ly
(180 ± 20 pc)
Absolute magnitude (MV)−0.88
Other designations
HR 4652, HD 106321, CD−45°7630, HIP 59654, SAO 223297, GC 16703, CCDM J12140-4543
Database references
SIMBADdata

The system is classified as an orange K-type giant. The brighter component has an apparent magnitude of +5.31, while the apparent magnitude of the optical companion is +6.8. The two stars are separated by 2.9 arcseconds.

References
  1. van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
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