Phosphorus was the personification of the Morning Star in Greek mythology, son of the goddess of dawn, Eos, and the god Astraios. He had a half-brother by his mother and Cephalus, whose name was Hesperus, the Evening Star. The Morning and the Evening Star were thought to be different celestial objects, however the Ancient Greeks later accepted the Babylonian theory that they were the same. They then dedicated the planet to the goddess Aphrodite, the Roman equivalent being Venus. Phosphorus had a number of children; Daedalion, Ceyx, and the Hesperides.
Phosphorus Is also called Lucifer, Eosphorus.