The Kepler-990 system contains 2 exoplanets. It is located 2616.30 light years away from the solar system.
| Mass | 1.05 solar masses |
| Radius | 1.08 solar radiae |
| Temperature | 5948 kelvin |
| Stellar Metallicity | 0.01 decimal exponent |
| Age | 3.55 billion years |
At more than 10 Earth masses, Kepler-990 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 | 7.270 Earth masses |
| Density | 2.270 grams per cubic centimeter |
| Radius | 2.600 Earth radiae |
| Semi-major Axis | 0.0883 AU |
| Eccentricity | 0 |
| Orbital Period | 9.917 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 2.957 Earth masses, Kepler-990 c 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 | 2.960 Earth masses |
| Density | 4.540 grams per cubic centimeter |
| Radius | 1.530 Earth radiae |
| Semi-major Axis | 0.0127 AU |
| Eccentricity | 0 |
| Orbital Period | 0.538 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 |