Exoplanet
Kepler-446 d
314.22 light-years
- Discovery
- Transit · 2015
- Radius
- 1.35 (+0.22 / −0.22) Earth radii
- Mass
- 2.39 Earth masses
- Orbital period
- 5.1489 (+2.2 × 10⁻⁵ / −2.2 × 10⁻⁵) days
- Semi-major axis
- 0.0403 AU
- Equilibrium temperature
- 436 K
- Mass provenance
- M-R relationship
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