Astrology is the study of the movements and relative positions of celestial objects as a means for divining information about human affairs and terrestrial events.

Many cultures have attached importance to astronomical events, and some – such as the Indians, Chinese, and Maya – developed elaborate systems for predicting terrestrial events from celestial observations.

What most people know about astrology is their “sign,” which refers to one of the 12 constellations of the zodiac. This is a form of sun-sign astrology, which is the astrology upon which newspaper horoscopes are based.