Exoplanet
HD 213240 b
133.3 light-years
- Discovery
- Radial Velocity · 2001
- Radius
- 12.8 Earth radii
- Mass
- 1,655.886 (+476.7426 / −155.7359) Earth masses
- Orbital period
- 882.7 (+7.6 / −7.6) days
- Semi-major axis
- 1.89 (+0.03 / −0.03) AU
- Equilibrium temperature
- 257.7 (+2.79 / −2.79) 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