Titan, Ganymede, Callisto and Io.
Collectively, they are known as the Galilean moons. Individually, they are Calypso, Ganymede, Io, and Europa.
The moons are Ganymede, Callisto, Io, and Europa. They are called the Galilean moons because they were reportedly first observed by Galileo Galilei in 1610. These four and the largest moon of Saturn (Titan) are large enough to be visible with simple telescopes from Earth.
Galilean
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.
The four largest moons of Jupiter discovered by Galileo are Io, Europa, Ganymede, and Callisto.
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The four largest moons of Neptune include Triton, Nereid, Naiad, and Thalassa. The next largest moons are Despina, Galatea, Larissa, and Proteus.
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 four of the five largest moons in the solar system including the largest, Ganymede. The second largest moon, Titan, orbits Saturn.
Jupiter has at least 63 known moons. The largest four are called Io, Europa, Ganymede, and Callisto. These four moonsare called the Galilean satellites because they were first seen in 1610 by the astronomer Galileo Galilei.
A Galilean satellite is one of the four largest moons of Jupiter discovered by Galileo Galilei in 1610. These moons are Io, Europa, Ganymede, and Callisto. They are also known as the Galilean moons and are some of the largest and most geologically diverse moons in our solar system.
Europa is one of Jupiter's moons. Actally theres Europa, Callisto, Ganymade, and Io. :] Ganymede, Io, Europa and Callisto Jupiter has 67 moons, of which four are major. Those moons are Io, Europa, Ganymede, and Callisto.