HD 115310
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 13h 16m 53.13s[1] |
| Declination | −31° 30′ 22.3″[1] |
| Apparent magnitude (V) | +5.10 |
| Characteristics | |
| Spectral type | K1III |
| U−B color index | +0.61 |
| B−V color index | +0.96 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | +13 km/s |
| Proper motion (μ) | RA: 33.64 ± 0.30[1] mas/yr Dec.: -48.65 ± 0.18[1] mas/yr |
| Parallax (π) | 12.66 ± 0.28[1] mas |
| Distance | 258 ± 6 ly (79 ± 2 pc) |
| Absolute magnitude (MV) | +0.70 |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 115310, also known by its Bayer designation r Centauri (r Cen), is a star in the constellation Centaurus.
r Centauri is an orange K-type giant with an apparent magnitude of +5.10. It is approximately 258 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
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