The Kepler-229 system contains 3 exoplanets. It is located 2694.91 light years away from the solar system.
| Mass | 0.8 solar masses |
| Radius | 0.73 solar radiae |
| Temperature | 5120 kelvin |
| Stellar Metallicity | 0.16 decimal exponent |
| Age | 1.1 billion years |
At more than 10 Earth masses, Kepler-229 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 | 5.480 Earth masses |
| Density | 2.830 grams per cubic centimeter |
| Radius | 2.200 Earth radiae |
| Semi-major Axis | 0.062 AU |
| Eccentricity | 0 |
| Orbital Period | 6.253 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-229 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 | 21.500 Earth masses |
| Density | 0.992 grams per cubic centimeter |
| Radius | 4.920 Earth radiae |
| Semi-major Axis | 0.117 AU |
| Eccentricity | 0 |
| Orbital Period | 16.069 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-229 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 | 14.200 Earth masses |
| Density | 1.370 grams per cubic centimeter |
| Radius | 3.850 Earth radiae |
| Semi-major Axis | 0.22 AU |
| Eccentricity | 0 |
| Orbital Period | 41.195 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 |