Exoplanet
K2-188 b
1,457.34 light-years
- Discovery
- Transit · 2018
- Radius
- 1.35 (+0.11 / −0.11) Earth radii
- Mass
- 2.39 Earth masses
- Orbital period
- 1.7422 (+4.57 × 10⁻⁴ / −3.65 × 10⁻⁴) days
- Semi-major axis
- 0.0289 (+3 × 10⁻⁴ / −3 × 10⁻⁴) AU
- Equilibrium temperature
- 1,692 (+33 / −32) 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