How many days does each solar term have in 24?

1. Twenty-four solar terms.

Each solar term has fifteen days.

2. The ancient Chinese divided the annual movement trajectory of the sun into 24 equal parts, each of which is a solar term, and each solar term has three phases, each of which is five days. The ancients determined the beginning and end of the four seasons according to the laws of heaven and earth, and divided the 24 solar terms. The annual trajectory of the sun is divided into 24 equal parts, each equal part is a "solar term", collectively referred to as the "24 solar terms".

3. Since it takes 365 days for the earth to circle the sun, there is only one solar term every fifteen days, and each solar term indicates climate and phenology.

Internally, at the same time, these "three candidates" are different changes.

There are 12 months in a year (Gregorian calendar), and there are two solar terms in each month. So each solar term is 15-16 days.

Now the number of solar terms is not a whole number, but is determined by the position of the earth in its orbit in astronomical observations. Each solar term is exactly 15 degrees (360 degrees around the orbit).

Of the 24 solar terms, each solar term has 15 days, that is, . It takes 365 days for the earth to orbit the sun, so there is a solar term every 15 days.

Ingredients: Purple cabbage, Accessories, dried chili, sugar and vinegar, sesame oil, edible oil, Step 1Cut the red cabbage into thin strips and put four teaspoons of sugar! Stir to combine.

2.Pour in balsamic vinegar, white vinegar can also be used, because the family has always loved balsamic vinegar, balsamic vinegar can also be colored! Stir well 3

Stir well and marinate for fifteen minutes, too long the water will be more in the red cabbage.

1. Choose the best time to exercise. Exercise can be started anytime and anywhere, but the results are different. The best time to exercise should be in the morning after the sun comes out, which is the best time for morning exercise.

In addition, you can also choose to exercise between 4 and 6 o'clock in the afternoon at dusk, when the body is at its highest. Exercise can get a good health effect.

2. Choose the best time to sleep. For adults to sleep, it must be up to seven hours of sleep. In addition, appropriate lunch breaks should be arranged for conditioning.

Elderly people can take an extended lunch break. Don't stay up late in the evening, because the early hours of the night are the best time for the body to repair, and you must enter a deep sleep to ensure a healthier body.

3. The best time to bask in the sun. When the warm sun comes out, basking in the sun can help people supplement their calcium. It is best to choose 8 to 10 a.m. and 4 to 6 p.m. at this time, because the ultraviolet A beam energy in this time is relatively strong, which can effectively promote the body's absorption of calcium and make the body's bones stronger.

Insisting on spending time in the sun every day is conducive to longevity.

The 24 solar terms have 15 days each.

The 24 solar terms are specific seasons in the calendar that indicate changes in the natural rhythm and establish the "December Month". At the age of one year, there are three months each in spring, summer, autumn and winter, and there are two solar terms per month, each of which has its own unique meaning.

The twenty-four solar terms accurately reflect the changes in the natural rhythm and play an extremely important role in people's daily life. It is not only a seasonal system that guides agricultural production, but also a folk system that contains a wealth of folk customs. The twenty-four solar terms contain a long cultural connotation and historical accumulation, and are an important part of the long history and culture of the Chinese nation.

The "24 solar terms" is the product of the ancient agricultural civilization, which is a knowledge system formed by the ancient ancestors who conformed to the agricultural time, observed the movement of celestial bodies, and recognized the changes of season, climate, and phenology in a year.

The twenty-four solar terms were originally formulated according to the rotation of the stars, the seven stars of the Big Dipper rotate in cycles, and the handle rotates clockwise for a cycle, which is called one "year" (seti).

The current "24 solar terms" are formulated according to the position of the sun on the return ecliptic, that is, the annual trajectory of the sun is divided into 24 equal parts, every 15 degrees is 1 equal part, and every 1 equal part is a solar term, which begins at the beginning of spring and ends with the great cold.

The 24 solar terms have 15 days each. Each section is about 2:05 on the 15th. In ancient times, the period of time between the winter solstice and the summer solstice and then to the winter solstice (about the day), that is, the year of return (the year of return), was divided into 24 segments (each period was about 15 days, 2 hours and 5 minutes), and each period began with a solar term.

The 24 solar terms have 15 days each. The current "24 solar terms" are based on a cycle of the earth's revolution around the sun as a reincarnation, which basically summarizes the different positions of the sun on the ecliptic at different times of the year, the exact time of cold and summer, and some phenological phenomena in nature.

The timing of the 24 solar terms is as follows:

The first half of the year: January 5-7 in Xiaohan, January 20-21 in Dahan, February 3-5 in Lichun, February 18-20 in rain, March 5-7 in shock, March 20-22 in the spring equinox, April 4-6 in Qingming, April 19-21 in Guyu, May 5-7 in Lixia, and May 20-22 in Xiaoman.

The second half of the year: June 5-7, summer solstice June 21-22, summer summer July 6-8, summer heat July 22-24, autumn 7-9, summer August 22-24, white dew September 7-9, autumn equinox September 22-24, cold dew October 8-9, frost fall October 23-24, winter January 7-8, light snow November 22-23, heavy snow December 6-8, winter solstice December 21-23.

The 24 solar terms are the specific seasons in the calendar that indicate the changes in the natural rhythm and establish the establishment of the twelfth month, the fourth year of the year, the three months of spring, summer, autumn and winter, and the two solar terms per month, each of which has its own unique meaning. The twenty-four solar terms accurately reflect the changes in the natural rhythm and play an extremely important role in people's daily life.

Folk customs:

The 24 solar terms scientifically reveal the law of astronomical and meteorological changes, which combines astronomy, agriculture, phenology and folk customs, and derives a large number of related seasonal cultures, which have become an important part of the traditional culture of the Chinese nation. In order to more accurately express the characteristics of the time sequence, the ancients divided the solar terms into four groups: division, solstice, opening and closing.

As a traditional agricultural society, the ancients attached great importance to the beginning of spring, and a variety of folk activities were held during this period. In ancient times, the importance of etiquette was not the first month of the lunar calendar, but the beginning of spring; Major worship to the gods and ancestors, exorcism and disaster removal, prayer for blessings, and welcoming the New Year are all arranged on the beginning of spring and the days before and after the beginning of spring.

The above content refers to the encyclopedia - 24 solar terms.

The 24 solar terms are: the beginning of spring, rain, stunning, vernal equinox, Qingming, Guyu, Lixia, Xiaoman, mangzhong, summer solstice, small heat, great heat, beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost fall, beginning of winter, light snow, heavy snow, winter solstice, small cold, big cold spring.

Meng Chun: Lichun 315 ° east wind thaws stinging insects Shi Zhen fish on the ice, February 3-5 rain 330 ° Tao Shi Hua Cang Gengming eagle turns into dove, February 18 - 20.

Mid-spring: 345° otter sacrifice fish, wild geese, grass and trees germinating, March 5-7.

The vernal equinox 0° Xuanniao to Lei Nai announced the start of the news on March 20-21.

Ji Chun Qingming 15 ° Tong Shihua vole turned into a rainbow and began to see April 4-6.

Gu Yu 30 degrees Ping's first song dove flicked its feathers, hoopoe fell on Mulberry April 19-21. Summer. Mengxia.

Lixia 45 ° mole chirping, earthworm out of the king melon, May 5-7, Xiaoman 60 °, bitter herbs, grass death, summer to May 20-22, midsummer, miscanthus 75 °, praying mantis, the beginning of the song of the tongue silent, June 5-7, summer solstice 90 ° antlers, the beginning of the song, half of the summer, June 21-22.

Season Summer. The small summer 105° temperature wind to the cricket dwelling Biying is to study July 6-8.

The heat is 120 degrees, and the decaying grass turns into fluorite moisturizing heat, and the heavy rain runs on July 22-24. Autumn Meng, autumn and autumn 135 ° cool breeze to white dew cold cicada chirping August 7-9 summer 150 ° eagle is the sacrifice of birds, the world of the beginning of Su He Naideng August 22-24.

Mid-autumn white dew 165 ° Hong Geese come to the Xuanniao flock of birds to raise shy, September 7 - socks tour - 9.

The autumn equinox is 180 °, the thunder begins to close, the stinging insects and the water begins to dry up, and on September 22-24, Sun is destroyed.

Autumn cold dew 195 ° Hong goose guest finch attack big water for clam chrysanthemum with yellow flowers, October 8-9.

The frost falls 210 degrees, the jackal is a sacrifice animal, the grass and trees are yellow, the stinging insects are salty, and it is on October 23-24. Winter Mengdong begins to freeze at 225 ° in winter, the ground begins to freeze, the pheasant enters the water for a mirage, November 7-8, light snow at 240 °, the rainbow is hidden, and the weather is closed, and the winter becomes a winter on November 22-23, the earth atmosphere declines in midwinter, the snow is 255 °, the bird does not sing, the tiger begins to make Litingsheng, December 6-8, the winter solstice is 270 °, the earthworm knots, the elk horn dissolves the water spring, and the winter season is 285 °, the goose is northward, the magpie begins to nest, and the pheasant begins to grow, and the pheasant begins to grow, January 5-7.

Dahan 300° chicken first milk bird is very sick, and the water is strong and the belly is strong, January 20-21.

The "24 solar terms" is unique to China and the most traditional time cognitive system in China, which has guided traditional agricultural production and daily life for thousands of years, and is an important part of China's traditional calendar system and related practical activities.

The 24 solar terms originated in the Yellow River Basin. In the Spring and Autumn Period, the four solar terms of mid-spring, mid-summer, mid-autumn and mid-winter have been determined. After continuous improvement and perfection by later generations, by the Qin and Han dynasties, the 24 solar terms had been fully established.

In 104 B.C., in the "Taichu Calendar" formulated by Deng Ping of the Western Han Dynasty, the 24 solar terms were officially set in the calendar, and the astronomical position of the 24 solar terms was clarified.

Let's take a look at the 24 solar terms: divided into four groups, each group can be divided into two parts, the beginning of spring, rain, stunning, vernal equinox, Qingming, and valley rain;

Lixia, Xiaoman, Mango, Summer Solstice, Small Summer, Great Heat;

Beginning of autumn, summer heat, white dew, autumn equinox, cold dew, frost;

Beginning of winter, light snow, heavy snow. Winter solstice, small cold, big cold.

The eight solar terms of the beginning of spring, the beginning of summer, the beginning of autumn, the beginning of winter and the spring equinox, the summer solstice, the autumn equinox, and the winter solstice are usually called the eight festivals of the four seasons.

In ancient times, people needed to determine the exact concept of the four seasons, and when the concept of the four seasons was incorporated into the calendar, it was discovered that the four seasons could not be determined based on temperature alone. Because since the Qin and Han dynasties, China can be said to be vast, which leads to the fact that at the same time, the temperature is not the same in different places, and the temperature is not always the same in different years and the same time. Therefore, it is necessary to find the most stable and universally applicable standard for determining the four seasons.

Our great and wise ancestors found this criterion in constant observation and summarization, that is, to look at the north and south positions of the sun. That's an astronomical standard. Although the north-south position of the sun is not the only criterion for determining the temperature of a place, it can generally affect the temperature change over the course of the year.

The four seasons set by the above eight solar terms in the 24 solar terms are the astronomical seasons and the calendar seasons. The four seasons and eight festivals are the backbone of the 24 solar terms and the backbone of its calendar. The other sixteen solar terms are the branches on this trunk.

The use of the branches is to bridge the astronomical seasons to the meteorological seasons.

According to astronomical conventions, the spring equinox is measured from west to east, and it is divided into 360 degrees. The ancients in China divided the 360 degrees of the sun's ecliptic longitude into 24 equal parts, and each 15 degrees was a solar term. The number of days between the two solar terms is about 15 days, so the year is divided into 24 solar terms.

It should be noted that the 24 solar terms are not a lunar calendar, it is considered part of the 2 lunar calendars, which is essentially a solar calendar, because the 24 solar terms are divided according to the position of the sun in a year.

Here"section"It is the festival of solar terms, and the word solar terms is according to the "Jade Sea" (which is an ancient etymology)."Five days is one hou, and three marquis is one qi, so one year old has 24 qi. There are two solar terms per month, the first solar term at the beginning of the month, and the middle air in the middle of the month. "The previous 24 solar terms are slowly being applied to the reality of life.

In the Spring and Autumn Period, the "Lü's Spring and Autumn Period" only recorded the eight solar terms of the beginning of spring, the spring equinox, the beginning of summer, the summer solstice, the beginning of autumn, the autumn equinox, the beginning of winter, and the winter solstice. In the book "Huainanzi" of the Western Han Dynasty, the twenty-four solar terms were recorded for the first time in a complete manner. In the early years of the Western Han Dynasty, the "Liyue Lingshu" takes the sting as the middle of the first month, the Qingming Festival is the middle of February, and the Later Han Dynasty Liu Xin's "Three Unification Calendars" takes the sting as the February Festival, and the current calendar takes the Qingming Festival as the March Festival, and the Guyu is the middle of March.

Each subsequent dynasty revised the calendar and promulgated it in accordance with the knowledge of astronomy at the time, especially the movement of the sun. During the Shunzhi period of the Qing Dynasty, the Western scientist Tang Ruowang (Han name, held an official position in the Qing Dynasty) once said in the song Zhang that the solar terms reflect the law of solar activity, and at the same time, it is also the observation and summary of the law of phenological changes in the northern region, "If the time of the solar term arrangement is not right, the time of the sun's rise and set, the length of day and night will cause confusion, and the current solar term arrangement only considers the north, even if it is the same solar term in various parts of the north, it will be 1-2 days apart, China is vast, and this chaos affects the people."