Exoplanet
Kepler-12 b
2,874.7 light-years
- Discovery
- Transit · 2011
- Radius
- 19.6606 (+0.3475 / −0.4035) Earth radii
- Mass
- 137.3026 (+16.845 / −16.2093) Earth masses
- Orbital period
- 4.438 (+6 × 10⁻⁷ / −6 × 10⁻⁷) days
- Semi-major axis
- 0.0553 (+1 × 10⁻³ / −1.2 × 10⁻³) AU
- Equilibrium temperature
- 1,480 (+30 / −30) 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