The Kepler-1143 system contains 2 exoplanets. It is located 1810.78 light years away from the solar system.
| Mass | 0.81 solar masses |
| Radius | 0.77 solar radiae |
| Temperature | 5053 kelvin |
| Stellar Metallicity | -0.06 decimal exponent |
| Age | 4.79 billion years |
At 3.434 Earth masses, Kepler-1143 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 | 3.430 Earth masses |
| Density | 4.050 grams per cubic centimeter |
| Radius | 1.670 Earth radiae |
| Semi-major Axis | 0.0371 AU |
| Eccentricity | 0 |
| Orbital Period | 2.889 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 |
At more than 10 Earth masses, Kepler-1143 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 | 12.600 Earth masses |
| Density | 1.480 grams per cubic centimeter |
| Radius | 3.600 Earth radiae |
| Semi-major Axis | 0.6477 AU |
| Eccentricity | 0 |
| Orbital Period | 210.631 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 |