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The Northern Hemisphere’s spring — or vernal — equinox can land between March 19 and 21, depending on the year. Its fall – or autumnal — equinox can land between Sept. 21 and 24.

Harvest Moon: Occurring closest to the autumnal equinox, typically in September, the Harvest Moon is often renowned for a distinct orange tint it might display. This Full Moon rises close to ...