Exoplanet
HD 20868 b
155.65 light-years
- Discovery
- Radial Velocity · 2008
- Radius
- 13.7 Earth radii
- Mass
- 397.2875 (+187.5197 / −187.5197) Earth masses
- Orbital period
- 380.85 (+0.09 / −0.09) days
- Semi-major axis
- 0.95 (+0.02 / −0.02) AU
- Equilibrium temperature
- 207.11 (+9.53 / −9.53) K
- Mass provenance
- Msini
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