Mercury
Mercury is the first planet from the Sun and the smallest planet in the Solar System. It is a terrestrial planet with a heavily cratered surface due to the planet having no geological activity and an extremely tenuous atmosphere (called an exosphere).
Mercury
| Orbit | 46,000,00km (0.3 AU) to 69,800,000km (0.47 AU) |
| Diameter | 4,880 km |
| Gravity | 0.38g (light) |
| Day Length | 176 days |
| Year Length | 88 days |
| Atmospheric Pressure | 0.5 nPa |
| Atmospheric Composition | O,Na,Mg,H |
| Temperature | 164°C |
Type
Planet
Location under
Comments