Exoplanet
Kepler-22 b
634.84 light-years
- Discovery
- Transit · 2011
- Radius
- 2.1 (+0.12 / −0.12) Earth radii
- Mass
- < 9.1 Earth masses
- Orbital period
- 289.8639 (+1.3 × 10⁻⁵ / −1.3 × 10⁻⁵) days
- Semi-major axis
- 0.812 (+0.011 / −0.013) AU
- Equilibrium temperature
- 279 (+4 / −4) 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