WASP-166
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Hydra |
| Right ascension | 09h 39m 30.08611s |
| Declination | −20° 58′ 56.8813″ |
| Apparent magnitude (V) | 9.35 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | F9V |
| Astrometry | |
| Radial velocity (Rv) | 23.49±0.24 km/s |
| Proper motion (μ) | RA: -55.101 mas/yr Dec.: +11.152 mas/yr |
| Parallax (π) | 8.7523±0.0141 mas |
| Distance | 372.7 ± 0.6 ly (114.3 ± 0.2 pc) |
| Details | |
| Mass | 1.19±0.06 M☉ |
| Radius | 1.22±0.06 R☉ |
| Luminosity | 1.86 L☉ |
| Surface gravity (log g) | 4.34±0.05 cgs |
| Temperature | 6050±50 K |
| Metallicity [Fe/H] | +0.19±0.05 dex |
| Rotation | 12.1±0.9 d |
| Rotational velocity (v sin i) | 4.6±0.8 km/s |
| Age | 2.1±0.9 Gyr |
| Other designations | |
| Filetdor, BD−20 2976, TOI-576, TIC 408310006, WASP-166, TYC 6055-537-1 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-166, also named Filetdor, is an F-type main-sequence star 373 light-years (114 parsecs) away in the constellation Hydra. With an apparent magnitude of 9.4, it is too faint to be visible to the naked eye. It hosts one known exoplanet.