Mother of Arcas.
Name Origin: Greek
Name Gender: Female
4th moon of Jupiter; in classical mythology a nymph, mom of Arcas by Zeus, looked to a bear by Hera, from Greek kallistos, superlative of kalos "beautiful," from PIE *kal- (2) "beautiful." Feminized as correct title Callista.
the next biggest of Jupiter's satellites
The worship of Callisto being merged in that of the greater divinity, she became the handmaid and companion of Artemis.