Exoplanet
HD 220689 b
152.89 light-years
- Discovery
- Radial Velocity · 2012
- Radius
- 13.7 Earth radii
- Mass
- 381.3941 (+69.9222 / −34.9611) Earth masses
- Orbital period
- 2,266.4 (+65.84 / −58.77) days
- Semi-major axis
- 3.396 (+0.084 / −0.081) AU
- Equilibrium temperature
- 160.11 (+4.09 / −4.09) 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