Exoplanet
HD 4208 b
111.52 light-years
- Discovery
- Radial Velocity · 2001
- Radius
- 13.9 Earth radii
- Mass
- 257.4423 (+4.4496 / −4.7675) Earth masses
- Orbital period
- 832.97 (+2.15 / −1.89) days
- Semi-major axis
- 1.662 (+0.015 / −0.015) AU
- Equilibrium temperature
- 196.68 (+3.56 / −3.56) 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