Celestial Cycles
This item is included in the following series/curriculum: Astronomy: Observations and Theories
- Grade Level: Senior High (10-12)-Adult
- Subjects: Astronomy
- Produced By: Coast Learning Systems
- Year: 2006
- Country: United States
- Language: English
- Running Time: 30m
- Captions:
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This video lesson explains the motion of Earth around the sun and its yearly cycle. Astronomers explain the unique orbital and size relations between the rotation of Earth, the sun, and the moon and how this makes a total solar eclipse possible at predictable intervals, known as the Saros cycle. The lesson concludes with a description of the ecliptic and explains how that differs from constellations that are contained in the zodiac.