Exoplanet
USco CTIO 108 b
469.73 light-years
- Discovery
- Imaging · 2008
- Radius
- 12.3 Earth radii
- Mass
- 4,449.62 (+635.66 / −2,542.64) Earth masses
- Orbital period
- Unknown
- Semi-major axis
- 670 AU
- Equilibrium temperature
- 2.96 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