The Kepler-57 system contains 2 exoplanets. It is located 2100.90 light years away from the solar system.
| Mass | 0.83 solar masses |
| Radius | 0.73 solar radiae |
| Temperature | 5145 kelvin |
| Stellar Metallicity | 0.117 decimal exponent |
| Age | 0.6 billion years |
At more than 50 Earth masses, Kepler-57 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 115.000 Earth masses |
| Density | NaN grams per cubic centimeter |
| Radius | 2.190 Earth radiae |
| Semi-major Axis | 0.06 AU |
| Eccentricity | 0 |
| Orbital Period | 5.729 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-01 |
| Reference | Steffen et al. 2013 |
At more than 10 Earth masses, Kepler-57 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 | 9.100 Earth masses |
| Density | NaN grams per cubic centimeter |
| Radius | 1.550 Earth radiae |
| Semi-major Axis | 0.096 AU |
| Eccentricity | 0 |
| Orbital Period | 11.609 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2013-01 |
| Reference | Steffen et al. 2013 |