Tau Centauri
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 12h 37m 42.16s[1] |
| Declination | −48° 32′ 28.7″[1] |
| Apparent magnitude (V) | +3.85 |
| Characteristics | |
| Spectral type | A2V |
| U−B color index | +0.03 |
| B−V color index | +0.05 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +5 km/s |
| Proper motion (μ) | RA: -186.26 ± 0.39[1] mas/yr Dec.: -6.01 ± 0.33[1] mas/yr |
| Parallax (π) | 24.85 ± 0.53[1] mas |
| Distance | 131 ± 3 ly (40.2 ± 0.9 pc) |
| Absolute magnitude (MV) | +0.82 |
| Other designations | |
| Database references | |
| SIMBAD | data |
Tau Centauri (τ Cen, τ Centauri) is a star in the constellation Centaurus. It is a A-type main-sequence star with an apparent magnitude of +3.85 and is approximately 131 light years from Earth.
References
- 1 2 3 4 5 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
This article is issued from Wikipedia - version of the 11/25/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.