Exoplanet
XO-2 S d
493.79 light-years
- Discovery
- Radial Velocity · 2024
- Radius
- 13 Earth radii
- Mass
- 1,179.1434 (+381.3941 / −162.0925) Earth masses
- Orbital period
- 4,696 (+1,133 / −489) days
- Semi-major axis
- 5.46 (+0.85 / −0.4) AU
- Equilibrium temperature
- 110.98 (+8.06 / −8.06) 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