Autumnal equinox: Celebrations around the world
Earth: Twice a year, the terminator that divides night from day on Earth is a straight north-south line. We call those the equinoxes. There's one in the spring (or vernal) equinox. The other is the fall (or autumnal) equinox, which is most associated with harvests. Click through the gallery to see previous autumnal equinox celebrations and settings around the world: