Autumn Equinox beautiful pictures HD mobile wallpaper

A set of beautiful pictures of the autumnal equinox, high-definition mobile wallpaper pictures to share with everyone. Wallpaper size: 1125x2436. The autumnal equinox is the sixteenth of the twenty-four solar terms and the fourth solar term of autumn.Dou Zhiji; the sun reaches 180° of ecliptic longitude; the festival is held on September 22-24 every year in the Gregorian calendar.On the autumnal equinox, the sun shines almost directly at the Earth's equator, making days and nights the same length all over the world.