Cicero makes her the mother of the fourth Heracles by Zeus. But according to the genuine and more general tradition, she was an inhabitant of Olympus, and beloved by Zeus. In order to escape from his embraces, she got metamorphosed into a quail, threw herself into the sea, and was here metamorphosed into the island Asteria (the island which had fallen from heaven like a star), or Ortygia, afterwards called Delos.
There are several other mythical personages of this name, one
a daughter of Alcyoneus [alcyonides]; a second, one of the
Danaids (Apollod. ii. 1. § 5); a third, a daughter of Atlas
(Hygin. Fab. 250, where, perhaps, Asterope is to be read); and a
fourth, a daughter of Hydis, who became by Bellerophontes the
mother of Hydissus, the founder of Hydissus in Caria.