Ursa Major but to avert the tragedy, Jupiter turns Arcas into a bear too and puts them both in the sky, forming Ursa Major and Ursa Minor. Callisto is Ursa Major and her son, Arcas, is Ursa Minor. In ancient times the name of the constellation was Helike, ("turning"), because it turns around the Pole. In Book Two of Lucan it is called Parrhasian Helice, since Callisto came from Parrhasia in Arcadia, where the story is set. The Odyssey notes that it is the sole constellation that never sinks below the horizon and "bathes in the Ocean's waves", so it is used
Ursa Minor northern direction. Since the medieval period, it has become convenient to use Alpha Ursae Minoris (or "Polaris") as the north star, even though it was still several degrees away from the celestial pole. Its New Latin name of "stella polaris" was coined only in the early modern period. The ancient name of the constellation is "Cynosura" (Greek Κυνοσούρα "dog's tail"). The origin of this name is unclear (Ursa Minor being a "dog's tail" would imply that another constellation nearby is "the dog", but no such constellation is known). Instead, the mythographic tradition of "Catasterismi" makes "Cynosura" the name of an