(the Water-bearer; abbrev. Aqr, gen. Aquarii; area 980 sq. deg.) A southern zodiacal constellation that lies between Pegasus and Piscis Austrinus, and culminates at midnight in late August. Its origin dates back to Babylonian times and it is said to represent Ganymede in Greek mythology, who was snatched up by Aquila (the eagle) on Zeus's behest, to become cup-bearer to the gods