Tags: Mythological Figure.
This article is about the Greek Goddess for the bird genus see Large-billed Tern.In Greek mythology Phaethusa (Φαέθουσα) or Phaëtusa (radiance) was a daughter of Helios and Neaera the personification of the brilliant blinding rays of the sun. With her sister Lampetia she guarded the cattle of Thrinacia.