Exoplanet
HD 217107 b
65.43 light-years
- Discovery
- Radial Velocity · 1998
- Radius
- 13.6 Earth radii
- Mass
- 459.5799 (+57.2091 / −21.2945) Earth masses
- Orbital period
- 7.127 (+4.7 × 10⁻⁶ / −4.7 × 10⁻⁶) days
- Semi-major axis
- 0.0736 (+4.2 × 10⁻⁴ / −5.3 × 10⁻⁴) AU
- Equilibrium temperature
- 1,105.84 (+9.22 / −9.22) 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