The Kepler-66 system contains 1 exoplanet. It is located 3923.53 light years away from the solar system.
| Mass | 1.04 solar masses |
| Radius | 0.97 solar radiae |
| Temperature | 5962 kelvin |
| Stellar Metallicity | -0.2 decimal exponent |
| Age | 1 billion years |
At more than 10 Earth masses, Kepler-66 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 | 8.250 Earth masses |
| Density | 2.070 grams per cubic centimeter |
| Radius | 2.800 Earth radiae |
| Semi-major Axis | 0.1352 AU |
| Eccentricity | 0 |
| Orbital Period | 17.816 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-07 |
| Reference | Meibom et al. 2013 |