Exoplanet
47 UMa b
45 light-years
- Discovery
- Radial Velocity · 1996
- Radius
- 13.2 Earth radii
- Mass
- 804.08 (+22.25 / −19.07) Earth masses
- Orbital period
- 1,078 (+2 / −2) days
- Semi-major axis
- 2.1 (+0.02 / −0.02) AU
- Equilibrium temperature
- 215.23 (+5.83 / −5.83) 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