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The strip of sky up to 8 ° either side of the ecliptic against which the Sun, Moon, and major planets appear to move. The strip is divided into twelve signs of the zodiac, each 30 ° long. These signs were named by the ancient Greeks after the constellations of the zodiac that occupied the same positions some 2000 years ago. As a result of precession, the constellations have moved eastwards by over 30 ° and no longer coincide with the signs.

Subjects: Arts and Humanities — Science and Mathematics.

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