35 1 the autumn harvest is good, the autumn wind is cool, and the mood is high.

Summary: It refers to the scene of harvest in this cool autumn, and laments the passage of time. Autumn is one of the four seasons. According to modern meteorology, autumn in north temperate zone is from August 23rd (summer) to165438+1October 20th (light snow). Autumn in the south temperate zone is from February 19 (rain in the northern hemisphere) to May 2 1 (xiaoman in the northern hemisphere). In China, traditionally, the "beginning of autumn" with 24 solar terms is the starting point of autumn and ends in the beginning of winter.

Autumn:

In autumn, the direct point of the sun gradually moves south from the northern hemisphere, passes through the equator after the autumnal equinox, and the sun directly shines in the southern hemisphere. Seen from the northern hemisphere, the angle of the sun gradually becomes lower, and the gap between day and night becomes smaller. At the autumnal equinox, the length of day and night is equal. In autumn, the distance between the earth and the sun is from far to near. Seen from the ecliptic plane, the sun is on the background of Leo, Virgo and Libra.