Good stuff here on the original purpose of the constellations that have become known as the zodiac.
This is an excellent excerpt from Chuck Missler's commentary on Genesis (Session 5) concerning the witness and meaning of the stars, the true meaning of star names translated from the most ancient names that are known, and several other tidbits of information having to do with cosmology and astronomy. The information he's presenting is not his own, but those of the authors below, E. W. Bullinger and Joseph A. Seiss.
The Witness of the Stars by Ethelbert William Bullinger (1893)
http://archive.org/details/witnessoft...
The Gospel in the Stars, or, Primeval Astronomy by Joseph Augustus Seiss (1884)
http://archive.org/details/gospelinst...