Exoplanet
55 Cnc c
41.05 light-years
- Discovery
- Radial Velocity · 2004
- Radius
- 8.51 Earth radii
- Mass
- 54.4738 (+1.748 / −1.748) Earth masses
- Orbital period
- 44.3936 (+2.4 × 10⁻³ / −2.4 × 10⁻³) days
- Semi-major axis
- 0.247 (+4 × 10⁻³ / −4 × 10⁻³) AU
- Equilibrium temperature
- 499.27 (+6.47 / −6.47) 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