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Public Universe

Exoplanet

HD 212301 b

176.88 light-years

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Discovery
Radial Velocity · 2005
Radius
14.2 Earth radii
Mass
162.0933 (+12.7132 / −12.7132) Earth masses
Orbital period
2.2457 (+2.8 × 10⁻⁴ / −2.8 × 10⁻⁴) days
Semi-major axis
0.03 (+0 / −0) AU
Equilibrium temperature
1,870.75 (+17.66 / −17.66) K
Mass provenance
Msini

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