Exoplanet
K2-12 b
1,064.51 light-years
- Discovery
- Transit · 2015
- Radius
- 2.44 (+0.3 / −0.14) Earth radii
- Mass
- < 5.2 Earth masses
- Orbital period
- 8.2825 (+5.2 × 10⁻⁴ / −5.2 × 10⁻⁴) days
- Semi-major axis
- 0.0792 (+1.6 × 10⁻³ / −1.3 × 10⁻³) AU
- Equilibrium temperature
- 1,026 (+15 / −15) 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