Exoplanet
K2-4 b
756.12 light-years
- Discovery
- Transit · 2015
- Radius
- 2.1 (+0.2 / −0.19) Earth radii
- Mass
- 5.06 Earth masses
- Orbital period
- 10.0034 (+1.017 × 10⁻³ / −9.96 × 10⁻⁴) days
- Semi-major axis
- 0.078 (+3 × 10⁻³ / −3 × 10⁻³) AU
- Equilibrium temperature
- 563 (+11 / −11) 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