Exoplanet
K2-255 b
624.94 light-years
- Discovery
- Transit · 2018
- Radius
- 2.9 (+0.28 / −0.11) Earth radii
- Mass
- 8.75 Earth masses
- Orbital period
- 1.9642 (+4 × 10⁻⁵ / −4 × 10⁻⁵) days
- Semi-major axis
- 0.0274 (+3 × 10⁻⁴ / −3 × 10⁻⁴) AU
- Equilibrium temperature
- 1,034 (+17 / −17) 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