Exoplanet
Kepler-428 b
2,238.36 light-years
- Discovery
- Transit · 2014
- Radius
- 12.11 (+0.34 / −0.34) Earth radii
- Mass
- 403.63 (+60.39 / −60.39) Earth masses
- Orbital period
- 3.5256 (+1.5 × 10⁻⁷ / −1.5 × 10⁻⁷) days
- Semi-major axis
- 0.0433 (+9 × 10⁻⁴ / −9 × 10⁻⁴) AU
- Equilibrium temperature
- 1,070 (+25 / −25) 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