Astrologers study the stars and planets to make predictions about the future. To an astrologer, the positions of various celestial objects at the moment of your birth can reveal a lot about your personality. Don't get astrologers confused with astronomers, scientists who study outer space.
Astrology is a method of predicting mundane events based upon the assumption that the celestial bodies—particularly the planets and the stars considered in their arbitrary combinations or configurations (called constellations)—in some way either determine or indicate changes in the sublunar world.