The Kepler-1656 system contains 2 exoplanets. It is located 606.24 light years away from the solar system.
| Mass | 1.03 solar masses |
| Radius | 1.1 solar radiae |
| Temperature | 5569 kelvin |
| Stellar Metallicity | 0.19 decimal exponent |
| Age | 6.31 billion years |
At more than 10 Earth masses, Kepler-1656 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 | 47.800 Earth masses |
| Density | 2.130 grams per cubic centimeter |
| Radius | 4.520 Earth radiae |
| Semi-major Axis | 0.1974 AU |
| Eccentricity | 0.838 |
| Orbital Period | 31.562 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2018-10 |
| Reference | Brady et al. 2018 |
At more than 50 Earth masses, Kepler-1656 c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 126.400 Earth masses |
| Density | 0.253 grams per cubic centimeter |
| Radius | 14.000 Earth radiae |
| Semi-major Axis | 3.053 AU |
| Eccentricity | 0.527 |
| Orbital Period | 1919.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | W. M. Keck Observatory |
| Discovery Telescope | 10 m Keck I Telescope |
| Discovery Instrument | HIRES Spectrometer |
| Discovery Date | 2022-05 |
| Reference | Angelo et al. 2022 |