Zodiacal Motion

What Does "Zodiacal Motion" Mean?

In addition to the changing appearances that are repeated every day (diurnal motions), some celestial bodies (i.e., planets, not fixed stars) change their relative positions in patterns that become apparent only when considered over longer periods of time such as a week, month, or year. Such changes are collectively known as "zodiacal motion" (the name "zodiacal" derives from "zodiac," or "circle of animals").

 

How the Sun (or Moon, or any given planet) appears to move through the zodiac.