The Kepler-1840 system contains 1 exoplanet. It is located 1673.53 light years away from the solar system.
| Mass | 0.77 solar masses |
| Radius | 0.8 solar radiae |
| Temperature | 4898 kelvin |
| Stellar Metallicity | 0.14 decimal exponent |
| Age | 14 billion years |
At more than 10 Earth masses, Kepler-1840 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 | 8.130 Earth masses |
| Density | 2.080 grams per cubic centimeter |
| Radius | 2.778 Earth radiae |
| Semi-major Axis | 0.4644 AU |
| Eccentricity | 0 |
| Orbital Period | 131.190 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 |