How to divide the four seasons of the lunar calendar

Update 1: If you can explain it in detail.

What are the 24 solar terms? So much the better!

The lunar calendar in China is a kind

How to divide the four seasons of the lunar calendar

Update 1: If you can explain it in detail.

What are the 24 solar terms? So much the better!

The lunar calendar in China is a kind of lunar calendar, including lunar calendar and solar calendar. Fishermen's fishing should be calculated according to the tide, that is, the movement of the moon, and farmers' farming should be carried out according to the position of the sun on the earth. The lunar calendar is calculated according to the orbit of the moon around the earth, and the solar calendar is calculated according to the orbit of the earth around the sun. The calculation of days in the western calendar is also based on the orbit of the earth around the sun, so there are many calculation methods similar to those in the lunar calendar. The most obvious is the calculation of solar terms. The Gregorian calendar defines the earth's orbit around the sun as one year, and divides this time into 12 parts, each of which is one month. Every year from 65438+1 October1to 65438+February 3 1 is the time for the earth to go around the sun and return to its relative position. The lunar calendar divides the earth's time around the sun into 24 parts, so each part is equal to half a month of the western calendar, that is, every half month of the western calendar has an integer. Most obviously, Qingming is the same as the winter solstice. Qingming Festival falls on April 5 of the Gregorian calendar every year, and the winter solstice falls on June 65438+February 2 1 or 22 of the Gregorian calendar every year. It can be seen that these two calculations are almost the same. But according to the lunar calendar, the calculation method of the year is based on the orbit of the moon around the earth. The moon revolves around the earth 12 or 13 for one year, because the time for the moon to revolve around the earth 12 is shorter than that for the earth to revolve around the sun, so it needs to be adjusted by moistening the moon. But every 19 years, it will start again. In other words, July 23rd of this year's solar calendar is June 23rd of the lunar calendar, and Qi Jie is in the heat. But next year, July 23rd of the Gregorian calendar will not fall on June 23rd of the lunar calendar, and June 23rd of the lunar calendar will follow 19. But the heat in summer is similar every year, which is July 22 or July 23 in the western calendar. The ancients determined such an accurate calendar according to the relationship between the sun, the moon and the earth. 2011-07-23 08:14: 49 supplement: four seasons in the lunar calendar: spring.

summer

autumn

Winter is made up of the beginning of spring (February 5th in Gregorian calendar).

6 or so)

Long summer (May 5, Gregorian calendar

6) Around, beginning of autumn (August 5th, Gregorian calendar

Around 6th) and beginning of winter (165438+15th of October).

Around the 6th). For example, I live in a temperate zone. Every year, a thin layer of frost can be seen on the grass one or two days before and after the Lunar New Year. There was no frost in the early days. West Renye Fang has first frost before and first frost after. Frost means frost, meaning before and after the first frost. 2011-07-23 08:17: 34 Supplement: Sorry, solar terms were later written as solar terms. 2011-07-23 08: 27: 52 Supplement: The lunar calendar divides the time of the earth's revolution around the sun into 24 parts, and each part is a solar term.

I hope I can help you. Solar terms refer to the 24 solar terms and climate, which is a supplementary calendar made by China to guide farming in ancient times. Because the traditional lunar calendar in East Asia is a kind of "yin and yang calendar", which is based on the movement of the sun and the moon, it can't fully reflect the solar cycle. But China is an agricultural society, and agriculture needs a strict understanding of the movement of the sun, so farming is entirely based on the sun. Therefore, the "twenty-four solar terms" that reflect the solar cycle alone are added to the calendar as the standard for determining leap months. Each of the 24 solar terms corresponds to a certain position reached by the sun every time it moves 15 on the ecliptic. The twenty-four solar terms are divided into 12 solar terms and 12 solar terms, which correspond to each other one by one. The 24 solar terms reflect the annual apparent movement of the sun, so their dates are relatively fixed in the solar calendar. The first half of the solar term is 6 days, the second half is 28 days, and the second half is 23 days, with a difference of 1 ~ 2 days. The naming of the twenty-four solar terms reflects three seasons, climate phenomena and climate change. The reaction seasons are beginning of spring, Spring Equinox, Long Summer, Summer Solstice, beginning of autumn, Autumn Equinox, beginning of winter and Winter Solstice, also known as Eight; The response to climate phenomena is surprised, bright, full and mans; Rain, Grain Rain, little summer, big summer, early summer, white dew, cold dew, first frost, light snow, heavy snow, slight cold and severe cold are the responses to climate change. In spring, the sun in beginning of spring is located at the longitude of the Yellow River of 365,438+05 degrees; On February 2-5, the rainy sun was located at 330 degrees longitude of the Yellow River; In February of 65,438+08-20, the shocking sun was located at 345 degrees longitude of the Yellow River; On March 5-7, the sun at the vernal equinox is located at 0 degrees longitude of the Yellow River; On March 20-22, the sun on Qingming Festival is at 65,438+05 degrees, and on April 65,438+09-265,438+0 degrees. [Editor's note] In summer, the sun in long summer is at 45 degrees, on May 5-7, at 60 degrees in Xiaoman and on May 20. On July 22-24, the autumn sun in beginning of autumn is at longitude 135 degrees, on August 7-9, the summer sun is at longitude 150 degrees, and on August 22-24, the dew day is at longitude 65438 degrees. On September 7-9, the autumnal equinox sun is located at longitude 180, on September 22-24, the cold dew sun is located at longitude 195, and on October 8-9, the early frost sun is located at longitude 2 10,1October 23-24 [ 6543865438+1October 5-7, the severe cold sun is located at 300 degrees of longitude, 65438+1October 20-2 1, node 20 1 1-07-20. ; ; ; ; ; Long summer is followed by summer; ; ; ; ; ; Beginning of autumn is followed by autumn; ; ; ; ; ; Winter comes after the beginning of winter; ; ; ; ; ;

Reference: Wikipedia