Exoplanet
Kepler-33 d
3,943.75 light-years
- Discovery
- Transit · 2011
- Radius
- 5.35 (+0.49 / −0.49) Earth radii
- Mass
- 3.91 (+1.87 / −1.8) Earth masses
- Orbital period
- 21.776 (+1.1 × 10⁻⁴ / −1.1 × 10⁻⁴) days
- Semi-major axis
- 0.1662 (+3.5 × 10⁻³ / −3.5 × 10⁻³) AU
- Equilibrium temperature
- 853 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