Thought I might muddy the water a little with this from Wikpedia:............
At this time astrology and astronomy were not distinguished as separate disciplines; the act of astronomical observation was often done by someone who had astrological motives for doing so. Indeed, astrologers' professional responsibility and desire for predictive knowledge for a large part spurred the advancement of astronomy, and the Babylonians developed a very precise ability to mathematically predict the location of celestial points and phenomena based upon their observable cycles