The Kepler-1691 system contains 1 exoplanet. It is located 4134.58 light years away from the solar system.
| Mass | 1.11 solar masses |
| Radius | 1.13 solar radiae |
| Temperature | 6000 kelvin |
| Stellar Metallicity | 0.16 decimal exponent |
| Age | 0.61 billion years |
At 4.039 Earth masses, Kepler-1691 b is a so called Super Earth. Super Earths could be terrestrial worlds like Earth, but they could also be ocean worlds or terrestrial worlds wrapped in a substantial atmosphere, in which case some refer to them as Mini Neptunes.
| Mass | 4.020 Earth masses |
| Density | 3.580 grams per cubic centimeter |
| Radius | 1.835 Earth radiae |
| Semi-major Axis | 0.0495 AU |
| Eccentricity | 0 |
| Orbital Period | 3.848 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 |