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Exoplanet

K2-205 b

1,321.92 light-years

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Discovery
Transit · 2018
Radius
1.9955 (+0.2695 / −0.2315) Earth radii
Mass
4.64 Earth masses
Orbital period
26.6723 (+4.16 × 10⁻³ / −3.676 × 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