Phaethusa

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.