When are the twenty-four solar terms?

spring

1. The sun in beginning of spring is located at longitude 3 15 degrees of the Yellow River and intersects on February 3-5. 2. The rainy day is located at 330 degrees longitude of the Yellow River and intersects on February 18-20.

3. The shocking sun is located at 345 degrees longitude of the Yellow River, and the node is on March 5-7. 4. The vernal equinox sun is located at 0 degrees longitude of the Yellow River, and the node is on March 20-22.

5. The Qingming Sun is located at longitude 15 degrees, the node is on April 4-6, the Grain Rain Sun is located at longitude 30 degrees, and the node is on April 19-2 1 day.

summer

1. The sun in the long summer is located at 45 degrees longitude of the Yellow River, and there is a node on May 7, and the sun in Xiaoman is located at 60 degrees longitude of the Yellow River, and there is a node on May 20-22.

3. The awn seed sun is located at 75 degrees longitude of the Yellow River, with the node on June 5-7, the summer solstice sun at 90 degrees longitude of the Yellow River, and the node on June 2 1-22.

5. In summer, the sun is located at 105 degrees, and the solar term is on July 6-8. 6. In summer, the sun is located at 120 degrees, and the solar term is on July 22-24.

autumn

1. The sun in beginning of autumn is located at the longitude of the Yellow River 135 degrees, and the solar term is on August 7-9. 2. In summer, the sun is located at longitude 150 degrees of the Yellow River, and the intersection point is on August 22-24.

3. The Millennium sun is located at longitude 165 degrees, with the node on September 7-9, the autumnal equinox sun at longitude 180 degrees, and the node on September 22-24.

5. The cold dew sun is located at the node of longitude 195, 65438+6 years1October 8-9. The first frost sun is located at longitude 2 10/0,65438+1October 23-24.

winter

1. The sun in beginning of winter is located at the longitude of 225 degrees,165438+1October 7-8, the intersection with 2. Xiaoxue Sun is located at the intersection of165438+1October 22-23 at the longitude of 240 degrees.

3. The snowy day is located at 255 degrees longitude of the Yellow River, and the node is 65438+February 6-8. 4. The winter solstice sun is located at 270 degrees longitude of the Yellow River, and the node is 65438+February 2 1-23.

5. The slight cold sun is located at the node of longitude 285 degrees, 65438+1October 5-7, 6 of the Yellow River. The severe cold day is located at the longitude of 300 degrees, 65438+1October 20th -2 1 node of the Yellow River.

Extended data:

Twenty-four solar terms refer to the special festivals in the dry calendar that indicate the season, phenology, climate change and the establishment of "December construction". Initially determined by the bucket handle direction of the Big Dipper, bucket handle rotates around the east, south, west and north for a period of time, which is called one of the "years old" (photo); Every rotation cycle starts from beginning of spring and ends with the Great Cold. The current "twenty-four solar terms" are divided by "constant gas method", that is, each solar term corresponds to a certain position that the earth reaches every time it runs 15 on the ecliptic; The method of "fixing qi" divides the sun's annual movement track into 24 equal parts, each equal part is 15, and each equal part is a solar term, which starts from beginning of spring and ends with severe cold. "Twenty-four solar terms" express the unique concept of time between human beings and the natural universe, and contain the long-standing cultural connotation and historical accumulation of the Chinese nation.

Baidu encyclopedia-24 solar terms