This proposition depends on your viewpoint to what is science therefore it brings us to problem of demarcation. If we look at this problem from Thagards viewpoint we can claim astrology as pseudoscience.
Thagard, Paul. 1978. “Why Astrology Is a Pseudoscience.” Proceedings of the Biennial Meeting of the Philosophy of Science Association 1978,1: 223–34.
We could think of a formal and serious astrological scientific research that use scientific method to actually attempt to prove if the position of the stars when you were born affects or not on your life. Therefore giving birth to scientific knowledge.