Hyginus
When the god in Egypt feared the monster Typhon, Pan bade them transform themselves into wild beasts the more easily to deceive him. Jove later killed him with a thunderbolt. By the will of the gods, since by his warning they had avoided Typhon’s violence, Pan was put among the number of the stars, Since at that time he had changed himself into a goat, he was called Aeocerus. We call him Capricorn. — 196