The Oxford English Dictionary quotes the following:
Astrology and astronomy were archaically treated together, and were only gradually separated in Western 17th century philosophy (the “Age of Reason”) with the rejection of astrology. During the later part of the medieval period, astronomy was treated as the foundation upon which astrology could operate. Since the 18th century astronomy and astrology have come to be regarded as entirely separate disciplines. Interestingly, many of those illustrious historical figures that we consider to be astronomers, were in fact astrologers, including Galileo Galilei, Tycho Brahe, and Johannes Kepler. Astronomy, the study of objects and phenomena originating beyond the Earth's atmosphere, is a science and is a widely studied academic discipline. Astrology, which uses the apparent positions of celestial objects as the basis for the prediction of future events, is a form of divination and a pseudoscience having no scientific validity. Modern day popular astrology — the horoscopes or “Your Stars” seen widely in newspapers and magazines — arose directly because of the birth of Princess Margaret. You can read about that here. Now that you are properly informed with regard to both disciplines, you'll know why you might choose to join with us.
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