Arian theology holds that Jesus Christ is the Son of God, who was begotten by God the Father with the difference that the Son of God did not always exist but was begotten within time by God the Father, therefore Jesus was not co-eternal with God the Father.
Christological Heresies: DOCETISM
Docetism is an ancient heresy that says Jesus was not fully human. According to Docetism, he seemed to be human, but because Jesus was fully divine, he had no physical body. The form people saw was essentially a ghost.