Exoplanet
16 Cyg B b
68.95 light-years
- Discovery
- Radial Velocity · 1996
- Radius
- 13.5 Earth radii
- Mass
- 565.7374 (+25.4264 / −25.4264) Earth masses
- Orbital period
- 798.5 (+1 / −1) days
- Semi-major axis
- 1.66 (+0.03 / −0.03) AU
- Equilibrium temperature
- 228.76 (+2.32 / −2.32) 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