Exoplanet
K2-99 c
1,693.5 light-years
- Discovery
- Radial Velocity · 2022
- Radius
- 12.6 Earth radii
- Mass
- 2,669.7586 (+63.5657 / −63.5657) Earth masses
- Orbital period
- 522.2 (+1.4 / −1.4) days
- Semi-major axis
- 1.43 (+0.01 / −0.01) AU
- Equilibrium temperature
- 390 (+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