Exoplanet
HD 13931 b
154.59 light-years
- Discovery
- Radial Velocity · 2009
- Radius
- 13.2 Earth radii
- Mass
- 889.9195 (+257.441 / −203.4102) Earth masses
- Orbital period
- 4,218 (+390 / −390) days
- Semi-major axis
- 5.15 (+0.33 / −0.33) AU
- Equilibrium temperature
- 139.38 (+4.64 / −4.64) 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