The WASP-20 system contains 1 exoplanet. It is located 691.05 light years away from the solar system.
| Mass | 1.2 solar masses |
| Radius | 1.39 solar radiae |
| Temperature | 5940 kelvin |
| Stellar Metallicity | -0.008 decimal exponent |
| Age | 7 billion years |
At more than 50 Earth masses, WASP-20 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 98.841 Earth masses |
| Density | 0.132 grams per cubic centimeter |
| Radius | 16.388 Earth radiae |
| Semi-major Axis | 0.06 AU |
| Eccentricity | 0 |
| Orbital Period | 4.900 days |
| Discovery Method | Transit |
| Discovery Facility | SuperWASP |
| Discovery Telescope | Canon 200mm f/1.8L |
| Discovery Instrument | iKon-L CCD Camera |
| Discovery Date | 2015-03 |
| Reference | Anderson et al. 2015 |