The Kepler-222 system contains 3 exoplanets. It is located 2475.05 light years away from the solar system.
| Mass | 0.88 solar masses |
| Radius | 0.87 solar radiae |
| Temperature | 5433 kelvin |
| Stellar Metallicity | 0.05 decimal exponent |
| Age | 0.7 billion years |
At more than 10 Earth masses, Kepler-222 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 | 10.100 Earth masses |
| Density | 1.760 grams per cubic centimeter |
| Radius | 3.160 Earth radiae |
| Semi-major Axis | 0.048 AU |
| Eccentricity | 0 |
| Orbital Period | 3.937 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |
At more than 10 Earth masses, Kepler-222 c 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 | 19.400 Earth masses |
| Density | 1.070 grams per cubic centimeter |
| Radius | 4.640 Earth radiae |
| Semi-major Axis | 0.091 AU |
| Eccentricity | 0 |
| Orbital Period | 10.089 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |
At more than 10 Earth masses, Kepler-222 d 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 | 13.200 Earth masses |
| Density | 1.440 grams per cubic centimeter |
| Radius | 3.690 Earth radiae |
| Semi-major Axis | 0.18 AU |
| Eccentricity | 0 |
| Orbital Period | 28.082 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2014-03 |
| Reference | Rowe et al. 2014 |