110 1.77 7 Europa jʊˈroʊpə 3122 90 4.8×10 22 65 671,034 175 3.55 13 Ganymede ˈɡænimiːd 5262 150 14.8×10 22 200 1,070,412 280 7.15 26 Callisto kəˈlɪstoʊ 4821 140 10.8×10 22 150 1,882,709 490 16.69 61 Classification of moons Jupiter's moon Europa. Before the discoveries of the Voyager missions, Jupiter's moons