Q Centauri

Q Centauri A/B
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Centaurus
Right ascension	13h 41m 44.772s
Declination	−54° 33′ 33.93″
Apparent magnitude (V)	+4.99 (+5.7/+7.1)
Characteristics
Spectral type	B8Vn/A0V
U−B color index	−0.23
B−V color index	−0.05
Variable type	none
Astrometry
Radial velocity (Rv)	+10 km/s
Proper motion (μ)	RA: -42.33 ± 0.60 mas/yr ; Dec.: -24.26 ± 0.53 mas/yr
Parallax (π)	12.02 ± 0.69 mas
Distance	270 ± 20 ly ; (83 ± 5 pc)
Absolute magnitude (MV)	+0.39 (+1.1/+2.5)
Other designations
	HR 5141, HD 118991, CP−53°5725, HIP 66821, SAO 241076, GC 18495, CCDM J13417-5434
Database references
SIMBAD	data

Q Centauri (Q Cen) is a binary star in the constellation Centaurus. It has a combined apparent magnitude of +4.99 and is approximately 270 light years from Earth.

The primary component, Q Centauri A, is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.7. Its companion, Q Centauri B, is a white A-type main sequence dwarf with an apparent magnitude of +7.1. The two stars are separated by 5.5 arcseconds on the sky.

References

^ ^a ^b ^c ^d ^e 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. S2CID 18759600. Vizier catalog entry

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[van_Leeuwen2007-1] 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. S2CID 18759600. Vizier catalog entry

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