Exoplanet
K2-8 b
1,316.08 light-years
- Discovery
- Transit · 2015
- Radius
- 3.58 (+0.71 / −0.71) Earth radii
- Mass
- 12.5 Earth masses
- Orbital period
- 10.3524 (+8.6 × 10⁻⁴ / −8.6 × 10⁻⁴) days
- Semi-major axis
- 0.0856 (+1.4 × 10⁻³ / −1.4 × 10⁻³) AU
- Equilibrium temperature
- 631 (+18 / −18) K
- Mass provenance
- M-R relationship
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