The Kepler-1866 system contains 1 exoplanet. It is located 3185.69 light years away from the solar system.
| Mass | 1.03 solar masses |
| Radius | 1.08 solar radiae |
| Temperature | 5791 kelvin |
| Stellar Metallicity | 0.16 decimal exponent |
| Age | 0.3 billion years |
With a mass below 5 Earth masses, a density of 3.04, and a semi-major axis of 0.1016 astronomical units, Kepler-1866 b could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.990 Earth masses |
| Density | 3.040 grams per cubic centimeter |
| Radius | 2.082 Earth radiae |
| Semi-major Axis | 0.1016 AU |
| Eccentricity | 0 |
| Orbital Period | 11.660 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2022-02 |
| Reference | Valizadegan et al. 2022 |