they are named Ganymede, Callisto, Io, and Europa
Maybe
It is the smallest of the four inner moons of Jupiter.
Jupiter has about 63 moons, but the four main moons of Jupiter are Europa, Ganymede, Callisto, and Io.
Jupiter has 53 named moons and at least 26 more awaiting official naming, bringing the total to 79 known moons.
Jupiter has a thin ring which is composed of three parts: a main ring, a halo, and an outer ring. Also, Jupiter has a three inner moons. These moons, named Metis, Adrastea, and Thebe, along with Amalthea.
Jupiter has the Galilean moons. So called because they were the first moons of Jupiter, discovered by Galileo using the new telescope.
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.
Many astronomers have discovered Jupiter's moons. Galileo discovered the first four moons of Jupiter, named Calisto, Europa, Ganymede and Io.
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.
Collectively, they are known as the Galilean moons. Individually, they are Calypso, Ganymede, Io, and Europa.
Jupiter currently has 79 known moons.