A dim, ancient constellation that is involved in several stories. In one story Crater is the cup that Ganymede (see Aquarius) keeps full for the gods in Olympus. In another story Crater is the cup that the god Apollo gave Corvus, the crow, to fill with spring water and bring back to him. Since Corvus did not accomplish this task, he is forever wanting to drink from Crater which is placed in front of him in the night sky. Crater can be found on the back of Hydra, the sea serpent, and just to the west of Corvus, the crow.