ar·chae·o·as·tron·o·my 
(är′kē-ō-ə-strŏnə-mē)
(är′kē-ō-ə-strŏnə-mē)n.
The study of the knowledge, interpretations, and practices of ancient cultures regarding celestial objects or phenomena.
ar′chae·o·as·trono·mer n.
ar′chae·o·as′tro·nomi·cal (-ăs′trə-nŏmĭ-kəl) adj.