• Key Information

  • Ganymede

  • Type
    Moon (of Jupiter)
  • Diameter
    3,270 miles
  • Distance from Jupiter
    665,000 miles
  • Orbit Time
    7.155 Earth days
  • Length of Day
    7.155 Earth days
  • Time around Sun
    11.863 Earth years
  • Atmosphere
    Thin, Oxygen
  • Temperature
    -280 °F
  • Date of Discovery
    Galileo Galilei, January 7, 1610
  • Learning Point
  • Ganymede has many different types of ice underneath its surface, including Ice III (Ice 3) and Ice VI (Ice 6) which are denser forms of ice than we have on Earth (Ice I).
  • Project
  • Create a list of the main moons of Jupiter.
  • Location
  • Located in
    Solar System, orbiting Jupiter
  • Fun Facts
  • Ganymede's ocean is estimated to be 60 miles thick – 10 times deeper than Earth's ocean – and is thought to be buried under a 95 mile thick crust of mostly ice.
  • Ganymede is the largest moon in our solar system, and is larger than the planet Mercury and the dwarf planet Pluto.
  • The four largest moons of Jupiter - Ganymede, Io, Europa and Callisto - are called the Galilean moons after Galileo Galilei which were all discovered on January 7, 1610.