Ganymede

Ganymede is the largest and most massive moon of Jupiter, and indeed the solar system. In fact, it is larger although less massive than Mercury..

• Semi-major Axis 1,070,400 km
• Orbital Eccentricity 0.0013
• Orbital Period 7.15455296 earth day
• Mean Orbital Velocity 10.880 km/s
• Orbital Inclination 0.20° to Jupiter's equator
• Axial Tilt 0-0.33°
• Mass 0.025 M_e/ 1.4819x10²³ kg
• Radius 0.413 R_e/ 2634.1 km
• Mean Density 5.470 g/cm³
• Surface Gravity 0.146 g/ 1.428 m/s²
• Escape Velocity 2.741 km/s
• Day Length Tidally locked, day length=orbital period

Geography

Ganymede is composed of dark ancient terrain, lighter and younger terrain, and groves that are rather young.

Natural Resources

Ganymede has a huge reservoir of water, as well as simple hydrocarbons.

Type

Planetoid / Moon

Location under

Jupiter