Exoplanet
K2-222 b
330.46 light-years
- Discovery
- Transit · 2018
- Radius
- 2.275 (+0.1 / −0.1) Earth radii
- Mass
- 7.5 (+1.5 / −1.5) Earth masses
- Orbital period
- 15.3889 (+9.9 × 10⁻⁶ / −1.1 × 10⁻⁵) days
- Semi-major axis
- 0.1186 (+2.1 × 10⁻³ / −2.1 × 10⁻³) AU
- Equilibrium temperature
- 803 (+24 / −25) K
- Mass provenance
- Mass
Measurements may come from different studies and need not form one self-consistent model. “Msini” is a minimum mass; a mass inferred from radius is an estimate. Equilibrium temperature is a model estimate, not a measured surface temperature or evidence of habitability.
NASA archive record and references ↗
Snapshot retrieved: 2026-10-11T04:15:07.688253+00:00