Exoplanet
HD 39091 b
59.59 light-years
- Discovery
- Radial Velocity · 2001
- Radius
- 12.3 Earth radii
- Mass
- 4,481.3805 (+158.9142 / −127.1314) Earth masses
- Orbital period
- 2,088.8 (+0.4 / −0.4) days
- Semi-major axis
- 3.28 (+0.04 / −0.04) AU
- Equilibrium temperature
- 172.74 (+2.55 / −2.55) 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