| Discovered By | Galileo Galilei |
| Date of Discovery | 1610 |
| Average Distance from Jupiter | 1,883,000 km (metric) |
| Equatorial Radius | 2,403 km (metric) |
| Mass | 107,593,000,000,000,000,000,000 kg (metric) |
| Orbit Period (Length of Year) | 16.6890184 Earth days |
| Orbital Eccentricity | 0.007 |
| Orbital Inclination to Ecliptic | 0.51° |
| Atmospheric Constituents | Carbon dioxide |
