Thanks the heads up on the spelling errors, and to Tilt for getting my title right. Doh!

As for Astrology vs Astronomy; good question. I actually thought that myself, but those subject headings are based on the classes from the Harry Potter series (at least according to Google). Astrology wasnt one of them; it may be something lumped into Divination, which I decided to leave off as a general subject area. perhaps a second floor is needed...