Exoplanet
Kepler-18 d
1,412.41 light-years
- Discovery
- Transit · 2011
- Radius
- 6.98 (+0.33 / −0.33) Earth radii
- Mass
- 16.4 (+1.4 / −1.4) Earth masses
- Orbital period
- 14.8589 (+4 × 10⁻⁵ / −4 × 10⁻⁵) days
- Semi-major axis
- 0.1172 (+1.7 × 10⁻³ / −1.7 × 10⁻³) AU
- Equilibrium temperature
- 720 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