Aquarius, the waterbearer:

One of the twelve ancient constellations that make up the zodiac, Aquarius is located in a part of the sky known as "the Water" that is full of water-related constellations. Aquarius represents the youthful shepherd boy Ganymede who was abducted by the Greek god Zeus and brought to Olympus to serve as cupbearer to the gods. His job was to keep the wine cups of the gods full. The constellation itself is one of the most difficult to find. None of the stars are particularly bright. Aquarius can be found underneath the Great Square of Pegasus.