Exoplanet
Kepler-197 d
1,078.19 light-years
- Discovery
- Transit · 2014
- Radius
- 1.22 (+0.1 / −0.1) Earth radii
- Mass
- 1.98 Earth masses
- Orbital period
- 15.6776 (+9.6 × 10⁻⁵ / −9.6 × 10⁻⁵) days
- Semi-major axis
- 0.119 AU
- Equilibrium temperature
- 810 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