The HAT-P-7 system contains 1 exoplanet. It is located 1112.45 light years away from the solar system.
| Mass | 1.56 solar masses |
| Radius | 2 solar radiae |
| Temperature | 6389 kelvin |
| Stellar Metallicity | 0.26 decimal exponent |
| Age | 2.07 billion years |
At more than 50 Earth masses, HAT-P-7 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 584.807 Earth masses |
| Density | 0.712 grams per cubic centimeter |
| Radius | 16.926 Earth radiae |
| Semi-major Axis | 0.03676 AU |
| Eccentricity | 0 |
| Orbital Period | 2.205 days |
| Discovery Method | Transit |
| Discovery Facility | HATNet |
| Discovery Telescope | Canon 200mm f/1.8L |
| Discovery Instrument | 2K CCD Sensor |
| Discovery Date | 2008-06 |
| Reference | Pal et al. 2008 |