Exoplanet
K2-389 c
845.42 light-years
- Discovery
- Transit · 2022
- Radius
- 2.04 (+0.151 / −0.138) Earth radii
- Mass
- 4.82 Earth masses
- Orbital period
- 20.8513 (+2.804 × 10⁻³ / −2.981 × 10⁻³) days
- Semi-major axis
- Unknown
- Equilibrium temperature
- Unknown
- 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