Exoplanet
K2-38 b
628.47 light-years
- Discovery
- Transit · 2016
- Radius
- 1.54 (+0.14 / −0.14) Earth radii
- Mass
- 7.3 (+1.1 / −1) Earth masses
- Orbital period
- 4.0159 (+5 × 10⁻⁴ / −5 × 10⁻⁴) days
- Semi-major axis
- 0.0499 (+4.8 × 10⁻⁴ / −4.9 × 10⁻⁴) AU
- Equilibrium temperature
- 1,266 (+44 / −50) 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