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Public Universe

Exoplanet

HU Aqr AB c

626.87 light-years

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The archive flags this planet’s confirmation as questioned in the literature.

Discovery
Eclipse Timing Variations · 2011
Radius
12.9 Earth radii
Mass
1,430.235 (+158.915 / −158.915) Earth masses
Orbital period
4,368 (+515 / −515) days
Semi-major axis
5.4 (+0.9 / −0.9) AU
Equilibrium temperature
Unknown
Mass provenance
Msin(i)/sin(i)

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