Exoplanet
HD 22781 b
106.34 light-years
- Discovery
- Radial Velocity · 2011
- Radius
- 12.3 Earth radii
- Mass
- 4,338.2 (+308 / −308) Earth masses
- Orbital period
- 528.07 (+0.14 / −0.14) days
- Semi-major axis
- 1.167 (+0.039 / −0.039) AU
- Equilibrium temperature
- 193.48 (+4.28 / −4.28) 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