The Kepler-1669 system contains 2 exoplanets. It is located 1772.48 light years away from the solar system.
| Mass | 0.67 solar masses |
| Radius | 0.71 solar radiae |
| Temperature | 4303 kelvin |
| Stellar Metallicity | -0.23 decimal exponent |
| Age | 13.9 billion years |
At more than 10 Earth masses, Kepler-1669 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 | 8.150 Earth masses |
| Density | 2.080 grams per cubic centimeter |
| Radius | 2.780 Earth radiae |
| Semi-major Axis | 0.0745 AU |
| Eccentricity | 0 |
| Orbital Period | 9.512 days |
| Discovery Method | Transit |
| Discovery Facility | Kepler |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2021-07 |
| Reference | Armstrong et al. 2021 |
With a mass below 5 Earth masses, a density of 3.41, and a semi-major axis of 0.0228 astronomical units, Kepler-1669 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 4.270 Earth masses |
| Density | 3.410 grams per cubic centimeter |
| Radius | 1.901 Earth radiae |
| Semi-major Axis | 0.0228 AU |
| Eccentricity | 0 |
| Orbital Period | 1.609 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 |