In the Homer's Iliad and Odyssey the sun god is called Helios Hyperion, 'Sun High-one'. But in the Odyssey, Hesiod's Theogony and the Homeric Hymn to Demeter the sun is once in each work called Hyperonides 'son of Hyperion' and Hesiod certainly imagines Hyperion as a separate being in other places.
In later Greek Hyperion is always distinguished from Helios as a Titan, the son of Gaia 'Earth' and Uranus 'Sky' and the father of Helios 'Sun', Selene'Moon' and Eos 'Dawn' by his sister Theia or Euryphaessa:
- "Theia yielded to Hyperion's love and gave birth
- to great Helios and bright Selene and Eos,
- who brings light to all the mortals of this earth
- and to the immortal gods who rule the wide sky."
- (Hesiod, Theogony, 371-374)