The Kepler-28 system contains 2 exoplanets. It is located 1429.73 light years away from the solar system.
| Mass | 0.75 solar masses |
| Radius | 0.7 solar radiae |
| Temperature | 4590 kelvin |
| Stellar Metallicity | 0.34 decimal exponent |
| Age | 2.24 billion years |
At more than 50 Earth masses, Kepler-28 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 479.900 Earth masses |
| Density | NaN grams per cubic centimeter |
| Radius | 3.600 Earth radiae |
| Semi-major Axis | 0.062 AU |
| Eccentricity | 0 |
| Orbital Period | 5.912 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2012-04 |
| Reference | Steffen et al. 2012 |
At more than 50 Earth masses, Kepler-28 c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 432.230 Earth masses |
| Density | NaN grams per cubic centimeter |
| Radius | 3.400 Earth radiae |
| Semi-major Axis | 0.081 AU |
| Eccentricity | 0 |
| Orbital Period | 8.986 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2012-04 |
| Reference | Steffen et al. 2012 |