The WASP-66 system contains 1 exoplanet. It is located 1631.62 light years away from the solar system.
| Mass | 1.33 solar masses | 
| Radius | 1.76 solar radiae | 
| Temperature | 6600 kelvin | 
| Stellar Metallicity | -0.31 decimal exponent | 
| Age | 3.7 billion years | 
At more than 50 Earth masses, WASP-66 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 746.900 Earth masses | 
| Density | 1.144 grams per cubic centimeter | 
| Radius | 15.693 Earth radiae | 
| Semi-major Axis | 0.0546 AU | 
| Eccentricity | 0 | 
| Orbital Period | 4.086 days | 
| Discovery Method | Transit | 
| Discovery Facility | SuperWASP | 
| Discovery Telescope | Canon 200mm f/1.8L | 
| Discovery Instrument | iKon-L CCD Camera | 
| Discovery Date | 2012-10 | 
| Reference | Hellier et al. 2012 |