Exoplanet
HD 40979 b
111.18 light-years
- Discovery
- Radial Velocity · 2002
- Radius
- 12.9 Earth radii
- Mass
- 1,484.2661 (+108.0622 / −108.0622) Earth masses
- Orbital period
- 264.15 (+0.23 / −0.23) days
- Semi-major axis
- 0.85 (+0.01 / −0.01) AU
- Equilibrium temperature
- 354.69 (+3.87 / −3.87) 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