Exoplanet
HD 111591 b
372.36 light-years
- Discovery
- Radial Velocity · 2017
- Radius
- 12.9 Earth radii
- Mass
- 1,398.452 (+127.132 / −127.132) Earth masses
- Orbital period
- 1,056.4 (+14.3 / −14.3) days
- Semi-major axis
- 2.5 (+0.1 / −0.1) AU
- Equilibrium temperature
- 422.08 (+15.61 / −15.61) 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