Q Centauri
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Centaurus |
Right ascension | 13h 41m 44.772s[1] |
Declination | −54° 33′ 33.93″[1] |
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[1] mas/yr Dec.: -24.26 ± 0.53[1] mas/yr |
Parallax (π) | 12.02 ± 0.69 mas[1] |
Distance | 270 ± 20 ly (83 ± 5 pc) |
Absolute magnitude (MV) | +0.39 (+1.1/+2.5) |
Other designations | |
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
[edit]- ^ 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