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Public Universe

Exoplanet

b Cen AB b

319.94 light-years

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Discovery
Imaging · 2021
Radius
12.4 Earth radii
Mass
3,464.3296 (+508.5255 / −508.5255) Earth masses
Orbital period
1.79 × 10⁶ (+8.3 × 10⁵ / −8.3 × 10⁵) days
Semi-major axis
556 (+17 / −17) AU
Equilibrium temperature
Unknown
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