Exoplanet
K2-203 b
541.9 light-years
- Discovery
- Transit · 2018
- Radius
- 1.2655 (+0.102 / −0.0796) Earth radii
- Mass
- 2.14 Earth masses
- Orbital period
- 9.6952 (+1.4 × 10⁻³ / −1.4 × 10⁻³) days
- Semi-major axis
- 0.0824 (+1.1 × 10⁻³ / −1 × 10⁻³) AU
- Equilibrium temperature
- 738.4 (+8 / −7.9) 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