"Zodiac (from the Latin zōdiacus, in turn from the ancient Greek ζωδιακός κύκλος, transl. Zōdiakós kýklos," circle of animals ", derived from ζώδιον, transl. Zōdion, short for ζῶον, zōon," animal ") is an imaginary range of celestial firmament that includes the apparent orbits of the Sun, the Moon and the planets Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune.
The divisions of the zodiac represent constellations in astronomy and signs in astrology. constellations along the ecliptic (the apparent path traveled by the Sun during the year). The 13 constellations that make up the zodiac, by the division made by the International Astronomical Union in 1930."