Exoplanet
Kepler-18 c
1,412.41 light-years
- Discovery
- Transit · 2011
- Radius
- 5.49 (+0.26 / −0.26) Earth radii
- Mass
- 17.3 (+1.9 / −1.9) Earth masses
- Orbital period
- 7.6416 (+3 × 10⁻⁵ / −3 × 10⁻⁵) days
- Semi-major axis
- 0.0752 (+1.1 × 10⁻³ / −1.1 × 10⁻³) AU
- Equilibrium temperature
- 899 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