Galilean Moons


* This simulation refered the link below for Jupiter’s satellite data.

Galilean satellite

Jupiter, the largest planet in the solar system, has many moons.
Jupiter’s representative moons include Io, Europa, Ganymede, and Calisto. These four satellites are called Galileo satellites. Galileo continued to observe that these moons orbited around Jupiter.

Ganymede is the largest satellite in the solar system. And, there is volcanic activity taking place in Io. Also, it is assumed that Europa is covered with ice.
Since Galilean Moons move so fast, observing them with a telescope can show their relative position changes overnight.