If you took a history of science course, you would know that scientists and engineers are continually inventing and refining their research tools and techniques.  Rather than accusing Astrology of being a "psuedoscience" you should acknowledge Astrology for being the PRE-science that it is.  Emperical observation finds that many (no, not all) astrological procedures work.  It's not in the job description of us Astrologers to prove that Astrology is a science.  But rather it's within the job description of the physical science researchers to improve the acumen of their research tools so as to discover why Astrology works.