Exoplanet
HD 191939 c
174.85 light-years
- Discovery
- Transit · 2020
- Radius
- 3.195 (+0.075 / −0.075) Earth radii
- Mass
- 8 (+1 / −1) Earth masses
- Orbital period
- 28.5797 (+4.5 × 10⁻⁵ / −4.5 × 10⁻⁵) days
- Semi-major axis
- 0.1752 (+5.5 × 10⁻³ / −5 × 10⁻³) AU
- Equilibrium temperature
- 600 (+13 / −13) 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