It is a constellation of the northern sky, SE from the Great Bear, discernible to the naked eye by a group of stars shaped like a "V", almost in the center of the arc formed by the tail of Ursa Major. It was introduced in the sky by the greek mythographer Conon (late 1st century BC.) In honor of Berenice II, wife of Ptolemy III of Egypt. In fact legend has it that when her husband went to war against Syria, the queen offered she dedicated her hair to Aphrodite for his safe return. When he came back, Berenice laid her beautiful hair in the temple of Venus, where Zeus, admiring such beauty, had it stolen and placed in heaven. The legend of how Berenice's hair became a constellation was told by Callimachus in a poem of which we only have few fragments, but it is fully known through the famous Latin translation by Catullus.