[Lawtan]

Astrology - original studies of the celestial bodies and their motion with a lack of full understanding about relative sizes, laws, distances. etc., therefore their mystery being linked/explained by mythology. Also is largely associated with stars being able to be used to predict a person's personality/days. (Most likely reason for this working: post-Rome civilization patterns in relationship to the seasons has not changed, and thus the attitudes/patterns around people (the Nurture aspect of growing up) are somewhat similar, potentially producing similar people...or than languages are vague enough for it to work like an ink blot psychology test)

Astronomy - Scientific study of bodies outside of Earth (and those bodies that enter Earth's atmosphere from outside and survive) for the purpose of mapping the universe and its past. The biggest potential flaw I could see in this are several theories involving the "end of the universe"...due to the fact that we barely have even scraped the expanse of the universe.

Both to me: Astrology is symbolistic, and a record of human history/evolution. Astronomy is the study of what is out there, and potentially would be useful for working with the universe to preserve/progress life (much like understanding the Earth is useful for working with the Earth)