Exoplanet
55 Cnc f
41.05 light-years
- Discovery
- Radial Velocity · 2007
- Radius
- 7.59 Earth radii
- Mass
- 44.812 (+3.814 / −3.814) Earth masses
- Orbital period
- 260.58 (+0.15 / −0.15) days
- Semi-major axis
- 0.802 (+0.014 / −0.014) AU
- Equilibrium temperature
- 277.07 (+3.7 / −3.7) 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