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Public Universe

Exoplanet

CT Cha b

622.05 light-years

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Discovery
Imaging · 2007
Radius
24.66 (+9.08 / −6.73) Earth radii
Mass
5,403 (+1,907 / −1,907) Earth masses
Orbital period
Unknown
Semi-major axis
440 AU
Equilibrium temperature
2,600 (+250 / −250) K
Mass provenance
Mass

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