Exoplanet
K2-228 b
422.24 light-years
- Discovery
- Transit · 2018
- Radius
- 1.21 (+0.1 / −0.06) Earth radii
- Mass
- 1.92 Earth masses
- Orbital period
- 2.6983 (+2.2 × 10⁻⁴ / −2.2 × 10⁻⁴) days
- Semi-major axis
- 0.0338 (+3 × 10⁻⁴ / −3 × 10⁻⁴) AU
- Equilibrium temperature
- 914 (+14 / −13) K
- Mass provenance
- M-R relationship
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