V553 Centauri
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 14h 46m 33.636s |
| Declination | −32° 10′ 15.27″ |
| Apparent magnitude (V) | 8.48 (8.22 to 8.80) |
| Characteristics | |
| Spectral type | G5p I–III |
| B−V color index | 0.600±0.020 |
| Variable type | BL Her |
| Astrometry | |
| Radial velocity (Rv) | −4.95±3.95 km/s |
| Proper motion (μ) | RA: 4.145 mas/yr Dec.: −1.914 mas/yr |
| Parallax (π) | 1.7286±0.0224 mas |
| Distance | 1,890 ± 20 ly (579 ± 7 pc) |
| Details | |
| Mass | 0.49 M☉ |
| Radius | 9.9 R☉ |
| Surface gravity (log g) | 2.2 cgs |
| Temperature | 6,060 K |
| Metallicity [Fe/H] | 0.01 dex |
| Other designations | |
| V553 Cen, CD−31° 11449, HD 129981, HIP 72257, SAO 205930, PPM 293050 | |
| Database references | |
| SIMBAD | data |
V553 Centauri is a variable star in the southern constellation of Centaurus, abbreviated V553 Cen. It ranges in brightness from an apparent visual magnitude of 8.22 down to 8.80 with a period of 2.06 days. At that magnitude, it is too dim to be visible to the naked eye. Based on parallax measurements, it is located at a distance of approximately 1,890 light years from the Sun.