large from small are Ganymede, Europa, Callisto, and Io.
Jupiter currently has 79 known moons.
Galilean
Jupiter has about 63 moons, but the four main moons of Jupiter are Europa, Ganymede, Callisto, and Io.
Galileo discovered four moons of Jupiter, which are now known as Galilean moons. They are Io, Europa, Ganymede and Calisto.
Jupiter has 79 known moons, with the four largest ones being Io, Europa, Ganymede, and Callisto.
Jupiter has 63 known moons (natural satalites).
My answer is four moons that Galileo found on or near Jupiter.
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.
Galileo was the first to observe the 4 largest moons of Jupiter (which are still known as the Galilean moons, in his honor).
Jupiter has 53 named moons and at least 26 more awaiting official naming, bringing the total to 79 known moons.
Collectively, they are known as the Galilean moons. Individually, they are Calypso, Ganymede, Io, and Europa.
Jupiter's count of moons is currently at 63. The four most important moons are Ganymede, Europa, Callisto, and Io.