Gack... I've been so out of it.
Swamped with work.
With regard to the fixed stars... strong and well-documented connections exist, though precession guarantees that those associations have shifted and that those shifts are obsessively documented by star-watchers over thousands of years. Even the Egyptians catalogs differ over constellational/decan associations because of the millenia involved. By the time the Decans are absorbed into Hellenistic astrology the overlaps are blurry and extreme... BUT, for some interesting thoughts, ravenest, see especially Paul Kunitzsch's
Arabs and the Stars: Texts and Traditions on the Fixed Stars and Their Influence in Medieval Europe. It's crazy expensive, but present in many good Uni libraries. Essays in German and English many of which are worth the time. Consider poking around the Behenians too...
Many thanks for the site link, Abrac. Some caveats: the writer there has a strong bone to pick in favor of sidereal astrology which is a really contentious point for a lot of traditional astrologers, because it ignores some of the basic realities of premodern astronomy (and thence the literal roots of astrology). Also, the author appears to be a big Steiner and Theosophy buff so a lot of the references skew in that direction with some negative impact. And note that the constellational associations are deeply wonky, relying as they do on the Rolleston's drastically outdated and anachronistic
Mazzaroth and on authors who treat it as gospel. Like a lot of 19th century apologists, Rolleston is largely concerned with finding Judaeo-Christian explanations for astrological systems to "prove" the inevitability of the Messiah by situating the biblical narratives in the constellations which is silly and bizarre. Whatever the Yahwists want to say, Astrology predates both Christianity and Judaism by a long stretch, and the astrology that leaks into Yahwist theologies comes from without, not within. Rolleston and to a lesser extent Robert Powell operate with some big dumb Christian preconceptiions, so a lof of their conclusions are built on sand.
Must dash, will return.