Exoplanet
HD 81817 c
877.77 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 12 Earth radii
- Mass
- 7,185.7825 (+590.843 / −596.2461) Earth masses
- Orbital period
- 622.978 (+2.0191 / −2.1204) days
- Semi-major axis
- 2.325 (+0.087 / −0.095) AU
- Equilibrium temperature
- 1,198.52 (+62.57 / −62.57) 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