Exoplanet
HD 81688 b
279.58 light-years
- Discovery
- Radial Velocity · 2007
- Radius
- 13.5 Earth radii
- Mass
- 525.6882 (+17.1627 / −17.4806) Earth masses
- Orbital period
- 183.93 (+0.09 / −0.09) days
- Semi-major axis
- 0.648 (+0 / −0) AU
- Equilibrium temperature
- 958.66 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