The Kepler-1129 system contains 2 exoplanets. It is located 3861.30 light years away from the solar system.
| Mass | 1 solar masses |
| Radius | 1 solar radiae |
| Temperature | 5831 kelvin |
| Stellar Metallicity | -0.04 decimal exponent |
| Age | 4.07 billion years |
At more than 10 Earth masses, Kepler-1129 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 | 9.060 Earth masses |
| Density | 1.920 grams per cubic centimeter |
| Radius | 2.960 Earth radiae |
| Semi-major Axis | 0.1644 AU |
| Eccentricity | 0 |
| Orbital Period | 24.340 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-1129 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 | 7.900 Earth masses |
| Density | 2.130 grams per cubic centimeter |
| Radius | 2.730 Earth radiae |
| Semi-major Axis | 0.3528 AU |
| Eccentricity | 0 |
| Orbital Period | 76.537 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 |