Exoplanet
HD 191939 g
174.85 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 3.74 Earth radii
- Mass
- 13.5 (+2 / −2) Earth masses
- Orbital period
- 284 (+10 / −8) days
- Semi-major axis
- 0.812 (+0.028 / −0.028) AU
- Equilibrium temperature
- 278 (+6 / −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