The K2-261 system contains 1 exoplanet. It is located 695.64 light years away from the solar system.
| Mass | 1.09 solar masses |
| Radius | 1.64 solar radiae |
| Temperature | 5445 kelvin |
| Stellar Metallicity | 0.36 decimal exponent |
| Age | 9.3 billion years |
At more than 50 Earth masses, K2-261 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 59.752 Earth masses |
| Density | 0.380 grams per cubic centimeter |
| Radius | 9.528 Earth radiae |
| Semi-major Axis | 0.1034 AU |
| Eccentricity | 0.286 |
| Orbital Period | 11.633 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2018-11 |
| Reference | Johnson et al. 2018 |