The Kepler-8 system contains 1 exoplanet. It is located 3332.89 light years away from the solar system.
| Mass | 1.21 solar masses |
| Radius | 1.49 solar radiae |
| Temperature | 6213 kelvin |
| Stellar Metallicity | -0.055 decimal exponent |
| Age | 3.47 billion years |
At more than 50 Earth masses, Kepler-8 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 187.520 Earth masses |
| Density | 0.270 grams per cubic centimeter |
| Radius | 15.872 Earth radiae |
| Semi-major Axis | 0.0474 AU |
| Eccentricity | 0 |
| Orbital Period | 3.522 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2010-12 |
| Reference | Jenkins et al. 2010 |