The WASP-99 system contains 1 exoplanet. It is located 517.48 light years away from the solar system.
| Mass | 1.21 solar masses |
| Radius | 1.64 solar radiae |
| Temperature | 6150 kelvin |
| Stellar Metallicity | 0.21 decimal exponent |
| Age | 3 billion years |
At more than 50 Earth masses, WASP-99 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 772.327 Earth masses |
| Density | 2.790 grams per cubic centimeter |
| Radius | 11.433 Earth radiae |
| Semi-major Axis | 0.0717 AU |
| Eccentricity | 0 |
| Orbital Period | 5.753 days |
| Discovery Method | Transit |
| Discovery Facility | SuperWASP |
| Discovery Telescope | Canon 200mm f/1.8L |
| Discovery Instrument | iKon-L CCD Camera |
| Discovery Date | 2014-05 |
| Reference | Hellier et al. 2014 |