Autumnal Equinox
English: The Earth at the start of the 4 (astronomical) seasons as seen from the north and ignoring the atmosphere (no clouds, no twilight). Português: A Terra no início das 4 estações (astronômicas) como vista do norte e ignorando a atmosfera (sem nuvens, sem crepúsculo). (Photo credit: Wikipedia)
The sun crosses the plane of the earth’s equator twice a year: on or about March 21 (Vernal Equinox) and again six months later, on or about September 22 or 23 (Autumnal Equinox). On these two occasions, night and day are of equal length all over the world. In the Northern Hemisphere, September 22 or 23 is the first day of autumn. Autumnal Equinox Day is a national holiday in Japan, observed on either September 23 or 24 to celebrate the arrival of autumn and to honor family ancestors. More… Discuss
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