Updated

The fall equinox has brought shorter days and a striking visual phenomenon known as the 'henge' effect, in which the setting or rising sun aligns precisely with east-west city street grids, illuminating urban canyons. The effect is visible in several major U.S. cities and has become a popular subject for photography. Commentators note the phenomenon is a modern echo of ancient celestial observances, as humans have long marked the changing seasons through alignments with the sun. The occurrence is tied to the astronomical timing of the equinox in September 2026.