Exoplanet
K2-99 b
1,693.5 light-years
- Discovery
- Transit · 2016
- Radius
- 11.8815 (+0.1121 / −0.1121) Earth radii
- Mass
- 276.5107 (+6.3566 / −6.3566) Earth masses
- Orbital period
- 18.2478 (+3 × 10⁻⁵ / −3 × 10⁻⁵) days
- Semi-major axis
- 0.153 (+1 × 10⁻³ / −1 × 10⁻³) AU
- Equilibrium temperature
- 1,184 (+19 / −19) 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