An eclipse season is the interval during which the Sun crosses a node of the Moon's orbit.

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During an eclipse season, the Moon can pass in front of the Sun (a solar eclipse) or behind the Earth (a lunar eclipse). This can happen because the Moon's orbit is tilted by about 5 degrees relative to the Earth's orbit around the Sun, so the Sun, Moon, and Earth are not always lined up perfectly. When the Sun is near one of the points where the Moon's orbit intersects the Earth's orbital plane (called nodes), an eclipse can occur. Therefore, an eclipse season is defined as the period when the Sun passes through a node of the Moon's orbit, which happens twice a year.

An Eclipse Season Is the Interval During Which the Sun