The total number of eclipses is limited to seven or fewer per year because one condition that must be met for a lunar or solar eclipse is that the

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The key condition for both lunar and solar eclipses to occur is that the Moon must be close to or crossing the ecliptic plane, which is the apparent path of the Sun across the sky over the course of a year. This is because eclipses can only happen when the Earth, Moon, and Sun are aligned or nearly aligned, with the Moon positioned near its ascending or descending node on the ecliptic plane.

The Total Number of Eclipses Is Limited to Seven or Fewer