Exoplanet
HD 81817 b
877.77 light-years
- Discovery
- Radial Velocity · 2020
- Radius
- 12 Earth radii
- Mass
- 7,668.5638 (+3,097.8735 / −219.6194) Earth masses
- Orbital period
- 1,021.2016 (+13.8837 / −9.8913) days
- Semi-major axis
- 3.233 (+0.125 / −0.131) AU
- Equilibrium temperature
- 1,016.37 (+53.15 / −53.15) 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