Exoplanet
K2-155 d
237.44 light-years
- Discovery
- Transit · 2018
- Radius
- 1.9 (+0.7 / −0.2) Earth radii
- Mass
- 4.27 Earth masses
- Orbital period
- 40.718 (+5 × 10⁻³ / −5 × 10⁻³) days
- Semi-major axis
- 0.1937 (+6.4 × 10⁻³ / −5.9 × 10⁻³) AU
- Equilibrium temperature
- 381 (+47 / −25) 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