Astrology is basically the method of predicting everyday events by basing on the positions and certain behaviors of the celestial bodies, such as planets and stars. These behaviors of the celestial bodies are also known as constellations. 

Now a day we work with many such types of astrology. They are - Western, Sidereal, Natal, Electional, Horary, Judicial, Medical, Chinese, Indian, Arab and Persian, Celtic, Egyptian.