Exoplanet
K2-251 b
479.55 light-years
- Discovery
- Transit · 2018
- Radius
- 2.35 (+0.26 / −0.21) Earth radii
- Mass
- 6.12 Earth masses
- Orbital period
- 9.3008 (+3.32 × 10⁻³ / −3.21 × 10⁻³) days
- Semi-major axis
- 0.0694 (+5 × 10⁻⁴ / −5 × 10⁻⁴) AU
- Equilibrium temperature
- 437 (+9 / −9) 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