The Kepler-218 system contains 3 exoplanets. It is located 2140.82 light years away from the solar system.
| Mass | 1.02 solar masses |
| Radius | 1.06 solar radiae |
| Temperature | 5502 kelvin |
| Stellar Metallicity | 0.31 decimal exponent |
| Age | 6.3 billion years |
At 2.795 Earth masses, Kepler-218 b is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 2.790 Earth masses |
| Density | 4.730 grams per cubic centimeter |
| Radius | 1.480 Earth radiae |
| Semi-major Axis | 0.046 AU |
| Eccentricity | 0 |
| Orbital Period | 3.619 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-218 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 | 10.000 Earth masses |
| Density | 1.770 grams per cubic centimeter |
| Radius | 3.140 Earth radiae |
| Semi-major Axis | 0.248 AU |
| Eccentricity | 0 |
| Orbital Period | 44.700 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-218 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 | 7.560 Earth masses |
| Density | 2.210 grams per cubic centimeter |
| Radius | 2.660 Earth radiae |
| Semi-major Axis | 0.4865 AU |
| Eccentricity | 0 |
| Orbital Period | 124.524 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 |