The Kepler-1661 system contains 1 exoplanet. It is located 1339.22 light years away from the solar system.
| Mass | 0.84 solar masses |
| Radius | 0.76 solar radiae |
| Temperature | 5100 kelvin |
| Stellar Metallicity | -0.12 decimal exponent |
| Age | 2 billion years |
At more than 10 Earth masses, Kepler-1661 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 | 17.000 Earth masses |
| Density | 1.600 grams per cubic centimeter |
| Radius | 3.870 Earth radiae |
| Semi-major Axis | 0.633 AU |
| Eccentricity | 0.057 |
| Orbital Period | 175.060 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2020-03 |
| Reference | Socia et al. 2020 |