The Kepler-668 system contains 1 exoplanet. It is located 2559.08 light years away from the solar system.
| Mass | 0.87 solar masses |
| Radius | 0.82 solar radiae |
| Temperature | 5352 kelvin |
| Stellar Metallicity | -0.06 decimal exponent |
| Age | 3.89 billion years |
At more than 10 Earth masses, Kepler-668 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 7.750 Earth masses |
| Density | 2.160 grams per cubic centimeter |
| Radius | 2.700 Earth radiae |
| Semi-major Axis | 0.0768 AU |
| Eccentricity | 0 |
| Orbital Period | 8.354 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2016-05 |
| Reference | Morton et al. 2016 |