Exoplanet
K2-240 c
237.8 light-years
- Discovery
- Transit · 2018
- Radius
- 1.8 (+0.3 / −0.1) Earth radii
- Mass
- 3.89 Earth masses
- Orbital period
- 20.523 (+1 × 10⁻³ / −1 × 10⁻³) days
- Semi-major axis
- 0.1159 (+2 × 10⁻³ / −2 × 10⁻³) AU
- Equilibrium temperature
- 389 (+19 / −17) 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