WASP-57
WASP-57 is a single G-type main-sequence star about 1310 light-years away. WASP-57 is depleted in heavy elements, having 55% of the solar abundance of iron. WASP-57 is much younger than the Sun at 0.957±0.518 billion years.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Libra |
| Right ascension | 14h 55m 16.8229s |
| Declination | −02° 03′ 27.5991″ |
| Apparent magnitude (V) | 13.04 |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | G6 |
| Astrometry | |
| Radial velocity (Rv) | -23.290 km/s |
| Proper motion (μ) | RA: -27.064 mas/yr Dec.: -4.687 mas/yr |
| Parallax (π) | 2.4826 ± 0.0359 mas |
| Distance | 1,310 ± 20 ly (403 ± 6 pc) |
| Details | |
| Mass | 0.886±0.061 M☉ |
| Radius | 0.927±0.031 R☉ |
| Surface gravity (log g) | 4.452±0.024 cgs |
| Temperature | 5600±100 K |
| Metallicity [Fe/H] | -0.25±0.1 dex |
| Rotation | 12.7±4.5 |
| Rotational velocity (v sin i) | 3.7±1.3 km/s |
| Age | 0.957±0.518 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
A multiplicity survey in 2015 did not detect any stellar companions to WASP-57.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.