WASP-17
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Scorpius |
| Right ascension | 15h 59m 50.9492s |
| Declination | −28° 03′ 42.313″ |
| Apparent magnitude (V) | 11.500 |
| Characteristics | |
| Spectral type | F6V |
| Astrometry | |
| Radial velocity (Rv) | −48.34±1.07 km/s |
| Proper motion (μ) | RA: −8.263(29) mas/yr Dec.: −9.427(22) mas/yr |
| Parallax (π) | 2.4811±0.0255 mas |
| Distance | 1,310 ± 10 ly (403 ± 4 pc) |
| Details | |
| Mass | 1.306±0.026 M☉ |
| Radius | 1.572±0.056 R☉ |
| Surface gravity (log g) | 4.14 ± 0.03 cgs |
| Temperature | 6509 ± 86 K |
| Metallicity [Fe/H] | –0.02 ± 0.09 dex |
| Rotational velocity (v sin i) | 10.6 ± 1.3 km/s |
| Age | 2.65±0.25 Gyr |
| Other designations | |
| Dìwö, CD−27 10695, TOI-1050, TIC 66818296, WASP-17, TYC 6787-1927-1, 2MASS J15595095-2803422, 1SWASP J155950.94−280342.3 | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
WASP-17 is an F-type main sequence star approximately 1,310 light-years away in the constellation Scorpius.
WASP-17 is named Dìwö. The name was selected in the NameExoWorlds campaign by Costa Rica, during the 100th anniversary of the IAU. Dìwö in Bribri language means the sun.
The star, although similar to the Sun in terms of overall contents of heavy elements, is depleted of carbon. The carbon to oxygen molar ratio of 0.18±0.04 for WASP-17 is well below the solar ratio of 0.55.