 The usual account of Selene's origin is given by Hesiod.In the "Theogony", the sun-god Hyperion espoused his sister Theia, who gave birth to "great Helios and clear Selene and Eos who shines upon all that are on earth and upon the deathless Gods who live in the wide heaven".The "Homeric Hymn to Helios" follows this tradition