Exoplanet
XO-5 b
900.88 light-years
- Discovery
- Transit · 2008
- Radius
- 12.78 (+0.34 / −0.34) Earth radii
- Mass
- 378.2 (+9.53 / −9.53) Earth masses
- Orbital period
- 4.1878 (+6 × 10⁻⁷ / −6 × 10⁻⁷) days
- Semi-major axis
- 0.0515 (+5 × 10⁻⁴ / −5 × 10⁻⁴) AU
- Equilibrium temperature
- 1,230 (+20 / −20) 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