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Nasa: Eclipses

Curated by ACT

The periodicity and recurrance of eclipses is governed by the Saros cycle, a period of approximately 6,585.3 days (18 years 11 days 8 hours). It was known to the Chaldeans as a period when lunar eclipses seem to repeat themselves, but the cycle is applicable to solar eclipses as well.

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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)