Wikimore

English: Astrology is a group of systems, traditions, and beliefs in which knowledge of the relative positions of celestial bodies and related details is held to be useful in understanding, interpreting, and organizing information about personality, human affairs, and other terrestrial matters.

A latter 16th-century astrolabe

Western astrology

Late 18th century Icelandic manuscript showing glyphs for planets and signs.
One of Nostradamus's works.
Image from a 15th century book of hours showing believed relations between the Western zodiacal signs and areas of the body.