What is The Zodiac ?

The zodiac is the belt or band of constellations through which the Sun, Moon, and planets move on their journey across the sky. Astrologers noted these constellations and so attached a particular significance to them. Over time they developed the system of twelve signs of the zodiac, based on twelve of the constellations they considered to be particularly important. Most western astrologers use the tropical zodiac beginning with the sign of Aries at the Northern hemisphere Vernal Equinox always on or around March 21 of each year. Due to a phenomenon called precession of the equinoxes , (whereby the map of the night sky has changed over time), the portion of sky occupied by each of the zodiac signs no longer corresponds to that of the constellations. For this reason some Western astrologers use the Sidereal zodiac which still uses the actual star positions.