1. Io
2. Europa
3. Ganymede
4. Callisto
Jupiter's four largest moons are known as the Galileans. They are individually named Io, Europa, Ganymede, and Callisto, named my Simon Marius in 1610. Ganymede is the largest of these four moons.
He named Titania, Oberon, Ariel, and Umbriel.
Collectively, they are known as the Galilean moons. Individually, they are Calypso, Ganymede, Io, and Europa.
The four largest moons - were named as a group after Galileo because of him being the first person to obseve them through his own invention - the telescope.
Jupiter has about 63 moons, but the four main moons of Jupiter are Europa, Ganymede, Callisto, and Io.
Jupiter has the Galilean moons. So called because they were the first moons of Jupiter, discovered by Galileo using the new telescope.
Galilean
He could only make out four of Jupiters' largest moons.
The four largest moons that orbit Jupiter are Io, Europa, Ganymede, and Callisto. These four moons are known as the Galilean Moons, because they were the first moons discovered around Jupiter by Galileo Galilei, sometime between 1609 and 1610.
Jupiter has 63 known moons (natural satalites).
Jupiter has at least 79 confirmed moons, making it the planet with the most moons in our solar system. The four largest moons of Jupiter are known as the Galilean moons and are named Io, Europa, Ganymede, and Callisto.
The four largest moons of Neptune include Triton, Nereid, Naiad, and Thalassa. The next largest moons are Despina, Galatea, Larissa, and Proteus.