The K2-291 system contains 1 exoplanet. It is located 293.72 light years away from the solar system.
| Mass | 0.93 solar masses |
| Radius | 0.9 solar radiae |
| Temperature | 5520 kelvin |
| Stellar Metallicity | 0.08 decimal exponent |
| Age | 3.72 billion years |
At more than 10 Earth masses, K2-291 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 | 6.490 Earth masses |
| Density | 8.840 grams per cubic centimeter |
| Radius | 1.589 Earth radiae |
| Semi-major Axis | 0.03261 AU |
| Eccentricity | 0 |
| Orbital Period | 2.225 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2019-03 |
| Reference | Kosiarek et al. 2019 |