You're going by ancient Greek astrology. The names you use make that very clear. I've yet to meet any believer in astrology who understands even the most basic aspects of their own beliefs, such as which school of astrology they believe in.
Since you're using an ancient Greek school of astrology, the next key question is whether or not you account for precession and why. So far, no believer I've asked even knew what precession is or why it's so important to astrology.
But it's silly nonsense anyway. Some ancient Greeks created patterns that aren't there, using some stars, ignoring others and being completely unaware of all the stars they couldn't see with the naked eye. The whole idea of the patterns of stars used in ancient Greek astrology is complete nonsense. Then there's the idea that these arbitrary and fictional patterns of stars determine the future and people's lives. Even if the patterns existed (which they don't) how would that work?
Foretelling the future by looking at tea leaves "makes sense" a lot more. At least tea leaves exist.