Exoplanet
K2-66 b
1,676.04 light-years
- Discovery
- Transit · 2016
- Radius
- 2.49 (+0.34 / −0.24) Earth radii
- Mass
- 21.3 (+3.6 / −3.6) Earth masses
- Orbital period
- 5.0696 (+8.1 × 10⁻⁴ / −8.1 × 10⁻⁴) days
- Semi-major axis
- 0.0598 (+7.2 × 10⁻⁴ / −7.2 × 10⁻⁴) AU
- Equilibrium temperature
- 1,372 (+51 / −51) 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