Exoplanet
11 UMi b
408.74 light-years
- Discovery
- Radial Velocity · 2009
- Radius
- 12.3 Earth radii
- Mass
- 4,684.8142 (+794.575 / −794.575) Earth masses
- Orbital period
- 516.22 (+3.2 / −3.2) days
- Semi-major axis
- 1.53 (+0.07 / −0.07) AU
- Equilibrium temperature
- 896.43 (+48.4 / −48.4) 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