Europa
Fourth largest moon of Jupiter, primarily made of silicate rock, has a water-ice crust, and probably an iron–nickel core with a very thin atmosphere, composed primarily of oxygen.
Europa
| Orbit | 671,000 km |
| Diameter | 3120 km |
| Gravity | 0.134g (light) |
| Day Length | Synchronous |
| Orbital Period | 3.55 days |
| Atmospheric Pressure | 0.1 µPa |
| Atmospheric Composition | ? |
| Temperature | -171°C |
Type
Planetoid / Moon
Location under
Comments