Exoplanet
HD 12661 b
123.44 light-years
- Discovery
- Radial Velocity · 2000
- Radius
- 13.3 Earth radii
- Mass
- 772.3269 (+44.4962 / −44.4962) Earth masses
- Orbital period
- 262.7086 (+0.083 / −0.083) days
- Semi-major axis
- 0.84 (+0.02 / −0.02) AU
- Equilibrium temperature
- 325.35 (+5.05 / −5.05) 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