Exoplanet
HD 40307 f
42.19 light-years
- Discovery
- Radial Velocity · 2013
- Radius
- 2.13 Earth radii
- Mass
- 5.2 (+1.5 / −1.6) Earth masses
- Orbital period
- 51.76 (+0.5 / −0.46) days
- Semi-major axis
- 0.247 (+0.011 / −0.014) AU
- Equilibrium temperature
- 398 (+423 / −423) 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