The autunmal equinox marks the first day of autumn or fall in the Northern Hemisphere.  It is one of two days every year when the sun illuminates equally in the Northern and Southern hemishperes.

The sun touches the horizon
A closeup of the halfway down sun that paints the sky orange.
After the sunset, the horizon glows.

The equioxal sunset from the beach shore last nigh did not disappoint as it was free of clouds and alive with vivid colors.