The name seems to be a compound of Ca-Astor, the temple or place of Astor; who was rendered at different times Asterius, asterion, and Astarte.
"A New System; or, an Analysis of Antient Mythology. Volume II. (of VI.)"
Jacob Bryant
31. He was also named Asterus, asterion, and Asterius.
"A New System; or, an Analysis of Antient Mythology. Volume II. (of VI.)"
Jacob Bryant
Pausanias represents asterion, whose tomb is said to have been discovered in Lydia, as a son of Anac, and of an enormous size.
"A New System; or, an Analysis of Antient Mythology. Volume I."
Jacob Bryant