The unusually short interval between moonrises around the Harvest Moon is related to what astronomical feature?

Answer

The autumnal equinox occurring where the ecliptic intersects the celestial equator at the shallowest angle.

This phenomenon is related to the fact that the autumnal equinox occurs near the point where the ecliptic intersects the celestial equator at the shallowest angle.

The unusually short interval between moonrises around the Harvest Moon is related to what astronomical feature?
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