The Wikipedia definition :
Astrology is the study of true movements and relative positions of celestial objects as a means for divining information about human affairs and terrestrial events. Astrology has been dated to at least the 2nd millennium BCE, ands has its roots in cylindrical systems used to predict seasonal shifts and to interpret celestial cycles as signs of divine communications.
Throughout most of its history astrology was considered a scholarly tradition and was common in academic circles, and is mentioned in various works of literature , from Dante Alighieri and Geoffrey Chaucer to William Shakespeare, Lope di Vega and Calderon di la Baca.
*** I find astrology very helpful and useful in everyday life and am interested in cross referencing astrology signs and aspects with health and beauty issues (like trimming hair at the appropriate lunar phase or which signs have digestive problems etc). There is no end to the help we can gain from studying nature!
( Astrology posts written by J.D.B.)