Exoplanet
HD 208897 b
220.11 light-years
- Discovery
- Radial Velocity · 2017
- Radius
- 13.7 Earth radii
- Mass
- 379.4871 (+15.5736 / −13.9844) Earth masses
- Orbital period
- 358.27 (+0.87 / −1.5) days
- Semi-major axis
- 1.063 (+2 × 10⁻³ / −3 × 10⁻³) AU
- Equilibrium temperature
- 507.24 (+14.6 / −14.6) 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