Judicial astrology is the art of forecasting events by calculation of the planetary and stellar bodies and their relationship to the Earth. The term "judicial astrology" was mainly used in the Middle Ages and early Renaissance to mean the types of astrology that were considered to be heretical by the Catholic church, distinguished from the "natural astrology" such as medical astrology and meteorological astrology, which were seen as acceptable because they were a part of the natural sciences of the time.