Exoplanet
XO-2 S c
493.79 light-years
- Discovery
- Radial Velocity · 2014
- Radius
- 13.6 Earth radii
- Mass
- 438.6032 (+15.8914 / −15.8914) Earth masses
- Orbital period
- 120.059 (+0.013 / −0.013) days
- Semi-major axis
- 0.4737 (+8.5 × 10⁻³ / −8.8 × 10⁻³) AU
- Equilibrium temperature
- 376.79 (+17.18 / −17.18) 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