zodiac

(in the study of the planets and their influence on life) an area of the sky through which the sun, moon, and most of the planets appear to move, divided into twelve equal parts, each with a name and symbol, and each connected with an exact time of year:

Examples:

a circular drawing representing the zodiac

an area of the sky in which the positions of the sun, moon, stars, and planets are believed in astrology to influence human behavior, and which is divided into twelve equal sections