اسم ( noun )• (1) تعریف: in Greek and Roman mythology, a nymph who was punished by Hera for a love affair with Zeus by being transformed into a bear.• (2) تعریف: the second largest of the moons of the planet Jupiter.
• one of the nymphs that served the goddess artemis (greek mythology); one of the twelve moons of the planet jupiter
The four largest moons of Jupiter—Io, Callisto, Ganymede, and Europaمنابع• https://en.wikipedia.org/wiki/Callisto_(moon)نام یکی از قمر های سیاره مشتری+ عکس و لینک