Episode

Astronomy Cast

Wizzard Media

Science & Medicine, Natural Sciences

Chart Positions

Science & Medicine 41
Natural Sciences 11

Astronomy Cast brings you a weekly fact-based journey through the cosmos.

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Ep. 319: The Zodiac

November 4th, 2013

Episode 352 of 478 episodes

Although the Zodiac is best known for astrology nonsense, it has a purpose in astronomy too. The constellations of the Zodiac define the plane of the ecliptic: the region where the Sun, Moon and planets appear to travel through the sky. What are the constellations of the Zodiac, and how do astronomers use them as waypoints?

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