Exoplanet
HD 109988 b
138.71 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 12.1 Earth radii
- Mass
- 6,935.3337 (+719.8813 / −1,320.577) Earth masses
- Orbital period
- 1.7132 × 10⁴ (+3,942.5544 / −2,033.8946) days
- Semi-major axis
- 12.518 (+1.517 / −1.319) AU
- Equilibrium temperature
- 65.91 (+4.41 / −4.41) 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