EOS A daughter of Theia and Hyperion, Eos, also called Aurora, was the goddess of the dawning morning. She was sister to Helios and Selene, and she herself gave birth to the star and winds of the morning, Zephyros, Boreas, Notos and Euros. Their father was Astraeos, the god of starlight.Eos was thought to ride in a carriage drawn by four white steeds, shedding light upon the Earth, although it was believed by others that she rode the great horse Pegasus, which Zeus had given to her after Bellerophon had failed to ride up toOlympus on it.