The K2-223 system contains 2 exoplanets. It is located 647.76 light years away from the solar system.
| Mass | 1.06 solar masses |
| Radius | 1 solar radiae |
| Temperature | 5859 kelvin |
| Stellar Metallicity | 0.19 decimal exponent |
| Age | - billion years |
At less than 1.5 Earth masses, K2-223 b is a terrestrial planet, much like the terrestrial planets we find in our solar system, namely Mercury, Venus, Earth and Mars.
| Mass | 0.640 Earth masses |
| Density | 4.990 grams per cubic centimeter |
| Radius | 0.890 Earth radiae |
| Semi-major Axis | 0.0127 AU |
| Eccentricity | NaN |
| Orbital Period | 0.506 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2018-03 |
| Reference | Mayo et al. 2018 |
At 2.859 Earth masses, K2-223 c 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 | 2.860 Earth masses |
| Density | 4.660 grams per cubic centimeter |
| Radius | 1.500 Earth radiae |
| Semi-major Axis | 0.0549 AU |
| Eccentricity | NaN |
| Orbital Period | 4.563 days |
| Discovery Method | Transit |
| Discovery Facility | K2 |
| Discovery Telescope | 0.95 m Kepler Telescope |
| Discovery Instrument | Kepler CCD Array |
| Discovery Date | 2018-03 |
| Reference | Mayo et al. 2018 |