: Around 4.5 billion years ago
: January 7th 1610 by Galileo Galilei
Distance from Jupiter
: Between 664,370 miles (perigee) and 665,861 miles (apogee)
Distance from the Sun
: Around 484,000,000 miles
Time to Orbit Around Jupiter
: About 7 Earth days
Total Surface Area
: 86,999,665 square miles
14 Ganymede Facts for Kids
Ganymede formed around 4.5 billion years ago.
Ganymede was discovered by Galileo Galilei on January 7th, 1610.
Ganymede is one of Jupiter’s seventy-nine known moons.
Ganymede has a radius of about 1,636 miles.
The closest Ganymede gets to Jupiter is 664,370 miles (perigee).
The farthest Ganymede gets from Jupiter is 665,861 miles (apogee).
It takes Ganymede about seven Earth days to orbit the planet Jupiter.
Ganymede is the largest moon in our solar system.
Ganymede is ninth largest object in our solar system.
Ganymede is the largest object in our solar system that doesn’t have a substantial atmosphere.
When the surface is exposed to the sunlight the temperature can get as high as -171 degrees Fahrenheit.
When the surface isn’t exposed to sunlight the temperature can get a slow as -297 degrees Fahrenheit.
Jupiter’s moon Ganymede is the only moon in our solar system to have a magnetosphere.
Since Ganymede has a magnetosphere, it’s most likely has a liquid, iron-nickel rich core.
Jupiter Moon Facts
Callisto Moon Facts
Europa Moon Facts
Ganymede Moon Facts
Io Moon Facts
Pictures of the moon Ganymede
A photo of Jupiter's moon Ganymede, taken by Voyager 1 on 3/4/1979.
A photo of Jupiter's moon Ganymede, taken by the Galieo Spacecraft.
A beautiful picture of Ganymede in orbit around the planet Jupiter.
Additional Resources on Jupiter's moon Ganymede
Ganymede Moon - Wikipedia
– Learn more about Europa on the Wikipedia Website.
Ganymede - Lunar and Planetary Institute
– Find out more amazing things about Ganymede on the Lunar and Planetary Institute website.
In Depth | Ganymede – NASA Solar System Exploration
– Discover more awesome facts about Ganymede on the NASA Solar System Exploration website.
Ganymede: Facts About Jupiter's Largest Moon
– Dive deeper into Ganymede on the Space.com website.