The TrES-3 system contains 1 exoplanet. It is located 754.52 light years away from the solar system.
| Mass | 0.93 solar masses |
| Radius | 0.83 solar radiae |
| Temperature | 5650 kelvin |
| Stellar Metallicity | -0.19 decimal exponent |
| Age | 0.9 billion years |
At more than 50 Earth masses, TrES-3 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 607.030 Earth masses |
| Density | 0.994 grams per cubic centimeter |
| Radius | 14.975 Earth radiae |
| Semi-major Axis | 0.02282 AU |
| Eccentricity | 0 |
| Orbital Period | 1.306 days |
| Discovery Method | Transit |
| Discovery Facility | TrES |
| Discovery Telescope | 0.10 m Schmidt Telescope |
| Discovery Instrument | 2K CCD Sensor |
| Discovery Date | 2007-07 |
| Reference | O'Donovan et al. 2007 |