How many days are there in each solar term?

How long does each solar term last? 15 days. 24 solar terms a year

How many solar terms are there in a year? How many days is each solar term? There are 354 or 355 days in a year and 383 or 384 days in a leap year. There are 24 solar terms, and the number of days between each solar term is different. Because the number of days in the lunar calendar is about 1 1 day shorter than that in the solar year, there are seven leap months in 19, and the third Geng day after long summer is the beginning, and the fourth Geng day is the middle (second) and after beginning of autumn. Every ten days * * * 30 days. In some years, "medium" is 20 days, while * * * is 40 days. Winter solstice enters nine, and there are nine days every nine days. Of course, after the winter solstice, it enters three or nine days.

Are these all the 24 solar terms? How many days are there in each solar term? The names of the 24 solar terms are: beginning of spring, Rain, Sting, Vernal Equinox, Qingming, Grain Rain, Changxia, Xiaoman, Mangzhong, Summer Solstice, Xiaoshu, beginning of autumn, Chushu, Bailu, Autumnal Equinox, Cold Dew, Chufrost, beginning of winter, Light Snow, Winter Solstice, Slight Cold and Severe Cold.

Rain in early spring (February 3-5) (February 18-20)

Equinox (March 5th to 7th) (March 20th to 22nd)

Tomb-Sweeping Day (the fourth day of the first month to the sixth day) and Grain Rain (the fourth day of April 19-2 1).

Long summer (May 5 -7) Xiaoman (May 20 -22)

Summer solstice (June 5-7) (June 265438 +0-22)

Summer (July 6-8) and summer (July 22-24)

Beginning of autumn is in summer (August 7 -9) (August 22 -24).

Millennium (September 7-9) Autumnal Equinox (September 22-24)

Cold dew (65438+1October 8-9) first frost (65438+1October 23-24)

Beginning of winter (165438+17-8 October) Xiaoxue (165438+122-23 October)

Heavy snow (65438+February 6-8) Winter solstice (65438+February 265438+February 0-23)

Slight cold (65438+1October 5-7) Great cold (65438+1October 20-2 1)

How many days are there in the 24 solar terms/24 solar terms Song:

The spring rain shakes the spring and the valley days, and the summer is full of mountains and summers.

Autumn dew, autumn frost, little snow in winter and cold in winter.

The twenty-four solar terms are determined entirely according to the revolution of the earth and the angle of the sun. Every 15 degree has a solar term. The solar term here is a general term, and other solar terms include "solar term" and "neutral gas", in which solar term refers to solar term and neutral gas refers to gas.

At present, the most commonly used calendars are Gregorian calendar and lunar calendar. Gregorian calendar, also known as Gregorian calendar, originated in the west in 65438+6th century, and is now applied almost all over the world. The lunar calendar is most easily called the "lunar calendar", but it is actually wrong. The lunar calendar is the lunar calendar, which is completely formulated according to the moon's cycle, as opposed to the solar calendar (solar calendar). The Gregorian calendar taught by * * is a kind of lunar calendar.

The lunar calendar can be called the lunar calendar, which means the moon and the moon double-track calendar. Other calendars are formulated with reference to the operation of other planets, which can be said to be multi-track calendars. For the lunar calendar, the general principle is to use the cycle of more than 29 days in the lunar calendar to determine the division of big month and small month, and then alternate, and finally make the average time of each month as close as possible to the length of the lunar calendar. For the solar calendar, the general principle is to use the tropical year cycle of more than 365 days to determine the leap year and peace year, and then alternate, and finally make the average time of each year as close as possible to the tropical year. For the lunar calendar, the definition of month makes use of the big moon and the small moon in the lunar calendar, making the number of days in each month 29 or 30, and also makes use of the concept of leap month in the solar calendar, making a year close to the length of the tropic year.

Why can the lunar calendar be so accurate?

Derived from its foundation-the twenty-four solar terms, because the twenty-four solar terms are defined strictly according to the astronomical phenomena and the angle between the earth and the sun, they are objective and naturally accurate. As we know, the earth's revolution has perigee and apogee, perigee is fast and apogee is slow. The earth is at perigee in winter and at apogee in summer. As mentioned above, the tropical year is more than 365 days per year. If you divide by 24, each solar term is more than 15 days. However, due to perigee and apogee, the time between solar terms is not always equal. At apogee, that is, in summer, the length of solar terms (defined here to reflect the objective situation, not average, solar terms are always objective) will even reach 16 days. So there is a problem, because the length of the lunar month is basically fixed, and because of the earth's revolution, the solar terms are sometimes delayed by 1 to two days, so day after day, it may lead to the postponement of neutral gas to next month, that is, there is no neutral gas in that month but only solar terms. The lunar calendar defines such a month as leap month. We think that since the 24 solar terms are defined strictly according to the revolution of the earth, the leap month just makes the length of the lunar year close to the real tropic year. Such a leap month is natural. Solar terms are also natural.

This reminds us that the Gregorian calendar year of the solar calendar is basically produced according to the artificially defined law that "non-century years can be divisible by 4, and century years can be divisible by 400". But it is precisely because of this simple law that it is easy for human beings to count the number of days in a year, only 365 and 366, and it is also easy to count the number of months, because all the years with leap months can be calculated simply, but the leap months in the lunar calendar are not easy to calculate. It can be said that the solar calendar is the concept of leap year and the lunar calendar is the concept of leap month.

Because the twenty-four solar terms are formulated for the revolution of the earth, that is, the sun, and the solar calendar is also formulated for the year when the sun returns, it is relatively accurate to use the solar calendar to represent the date of the twenty-four solar terms, but it is not always a day, because we must remember to consider the influence of perigee and apogee. So there will be a difference of 1 to 2 days.

After listening to the above, it seems that the lunar calendar said by the elders is accurate. Of course, it is best to use

How many days is each of the 24 solar terms? What we generally know now is that the sun and the earth have been constantly revolving and rotating. The earth's orbit around the sun is usually called the ecliptic, and the 24 solar terms are divided according to the position of the sun on the ecliptic. First of all, when the sun shines directly on the equator, it is designated as "the longitude of the Yellow River is zero", that is, the vernal equinox. From here, every advance of 15 degrees is a solar term, which extends downwards from the vernal equinox, Qingming, Grain Rain, Changxia and so on. After running for a week, it will return to the vernal equinox, which is a 360-degree tropic year, so it is divided into 24 solar terms. The twenty-four solar terms are actually a "moment", not a "day". During the earth's revolution and rotation, because the earth's rotation axis has an inclination of 23.5 degrees relative to the coaxial axis, the elevation angle of the sun is higher at noon in summer and lower in winter, which affects the temperature and season throughout the year. In order to let our ancestors know about the climate change in cold and summer, decide the progress of farming or serve as a reference for daily life, ancient historians stipulated that the tropical year from winter solstice to winter solstice of the following year should be divided into twelve equal parts, called Zhongqi; Then, the two equal parts of neutral gas are called solar terms, which are the source of 24 solar terms. The formulation of this solar term is called "flat gas method". However, because the earth's orbit around the sun is elliptical. Near the sun, the speed of the earth's revolution is faster, but far away, it is slower. For the Central Plains region where this calendar was made at that time, some solar terms could not reflect the real climate. Therefore, since the Qing Dynasty, the vernal equinox has been set at 0 degrees, and every time the sun runs 15 degrees on the ecliptic, it is set as a solar term or a solar term. Now solar terms and solar terms are collectively referred to as "solar terms". Twenty-four solar terms are precious scientific heritages created by our Chinese ancestors after thousands of years of practice, and they are tools to reflect the changes of weather, climate and phenology and master the farming season. It originated in the Yellow River valley of China. As early as the Spring and Autumn Period and the Warring States Period, China was able to measure the length of the midday sun shadow with a soil gauge (a pole was erected on the plane), and four solar terms, namely winter solstice, summer solstice, vernal equinox and autumnal equinox, were determined by the length. The Book of History in the Spring and Autumn Period recorded the solar terms. After continuous improvement and perfection, by the Qin and Han Dynasties, the 24 solar terms had been completely established. The twenty-four solar terms are completely recorded in Huainanzi written by Liu An in the Western Han Dynasty. In BC 104, the taichu calendar written by Deng Ping officially set 24 solar terms in the calendar, and defined the astronomical position of the 24 solar terms. According to the different seasons, the 24 solar terms can be divided into several categories. Beginning of spring, vernal equinox, long summer, summer solstice, beginning of autumn, autumnal equinox, beginning of winter and winter solstice are eight solar terms. There are five solar terms symbolizing temperature change: slight summer heat, great summer heat, summer heat, slight cold and severe cold; Reflecting precipitation are: rain, Grain Rain, Bailu, cold dew, first frost, light snow and heavy snow; The solar terms reflecting phenological phenomena or agricultural activities are: fright, Qingming, Xiaoman and Mang. In addition, the vernal equinox, autumnal equinox, summer solstice and winter solstice are divided from an astronomical point of view, reflecting the turning point of solar height change. Beginning of spring, Changchun, beginning of autumn and beginning of winter reflect the beginning of the four seasons. Because China is a vast country with a very obvious monsoon and continental climate, the weather and climate vary greatly from place to place, so the four seasons in different regions are also very different. The three solar terms, White Dew, Cold Dew and First Frost, on the surface reflect the phenomenon of water vapor condensation, but in essence they reflect the process and degree of gradual temperature drop. Frightening and Qingming reflect natural phenological phenomena, especially stinging, which indicates that spring will return with the recovery of early thunder in the sky and underground stinging insects.

How many days are there in the 24 solar terms? The longitude of the sun is in the solar calendar, and the date of Miao calendar is in the three climates.

Beginning of spring, 3 15, February 3-5, the east wind thawed, the stinging insects began to tremble, and the fish froze in Miaoli 16th.

Rain 330 February 1 8-20 Miao calendar 1 month/day, fish festival came, geese came and plants sprouted.

Stunned 345 March 5-7 Miao calendar 1 month 16 peach blossom, Cang Geng Ming, eagle turns pigeon.

On March 20-2 1 on the vernal equinox and February 1 on the Miao calendar, the birds arrived, the thunder rang and began to call.

Qingming15 April 4-6 Miao calendar February 16, when the flowers bloom, the mice turn into flowers and the rainbow begins to see.

Grain Rain was born on April 30th 19-2 1 Miao calendar on March 1st. Pigeons flapped their wings and mulberry trees fell in Dai Sheng.

May 5-7, 45, Long Summer Miao calendar March 16, insects sound, insects come out, and Wang Guasheng.

May 20-22, Miao calendar April 1 day, bitter vegetables show, weeds die, and the summer heat comes.

June 5-7, Miao calendar April 16, mantis was born, V began to speak, and his tongue was silent.

Summer solstice, June 2, 90 1-22, Miao calendar, May1day, antlers shed, and Pinellia ternata was born.

Summer heat105 July 6 -8. May 16, Miao calendar warm wind, cricket living in Bibi, eagle learning.

In summer 1 20, July 22-24, June1day, the soil was wet and it rained heavily.

Beginning of autumn 135 August 7-9 Miao calendar June 16, cool breeze blowing gently, white dew bursts, cold suddenly.

Summer 1 50 August 22-24 Miao calendar July1Eagle is a sacrificial bird, and heaven and earth will be fixed, and Naideng.

White deer 165 September 7-9 Miao calendar July 16 Hongyan comes, the mysterious birds return, and the birds are ashamed.

Autumnal equinox 1 80 September 22-24 Miao calendar August1day, thunder began to stop, insect farmers started to rise, and the water began to dry up.

Cold dew 195 65438+ 10 August-9 Miao calendar August 16 Hongyan guest, birds attack the water for clams, chrysanthemums have yellow flowers.

The first frost is 2 1 0101October 23 -24, and the seedling calendar is September1day. The jackal is a sacrificial animal, with yellow vegetation and salty stinging insects.

Beginning of winter 225 165438+1October 7-8 Miao calendar September16, the water began to freeze, the ground began to freeze, and pheasants flooded.

Xiaoxue 240 1 65438+1October 22-23 Miao calendar1October1day rainbow disappeared, and the weather was blocked, which led to winter.

Heavy snow 25565438+February 6-8 Miao calendar1October 16} Birds stopped singing, tigers began to make love, and pears were quite healthy.

Winter solstice 270 65438+February 2 1 ―― The first day of Miao calendar (Miao calendar New Year), earthworm knot, elk horn solution, Spring Festival travel rush.

Xiao Han 285 65438+1October 5-7 Miao calendar moved northward, magpies began to nest, and pheasants 16 began to grow.

Great cold 300 65438+1October 20 -2 1: On the first day of Miao calendar, chickens began to nurse, birds became sick, and Shui Ze's abdomen was firm.

How many days are allocated to each solar term in a year? There are 24 solar terms in a year, and each solar term is only on a certain day and time, which is found in folk pornographic books. There is a rule about which solar term is subject to where, as follows: beginning of spring: February 4th-5th, which is called beginning of spring solar term. Rain: February1August-20 Winter comes and spring comes, the temperature starts to rise, and the air humidity keeps increasing, but the cold air activity is still very frequent. Sting: March 5th (6th) refers to the winter when hibernating organisms in hibernating soil start to move. It was cold and warm before and after the shock, and the temperature and wind changed greatly. Vernal equinox: On March 20th (or 2 1) every year, the sun shines directly on the equator, and day and night are almost equal. Overwintering crops in vast areas of China will enter the spring growth stage. Qingming: Around April 5 every year, the temperature rises and the weather gets warmer. Grain Rain: Around April 20th, the rainfall increased, which was beneficial to grain growth. Long summer: "Long summer" on May 5th or 6th. Everything grows and prospers. Xiaoman: "Xiaoman" was handed in on May 20th or 2nd1. Summer crops such as wheat are full at this time, but not mature. Ear seed: around June 6, when the sun moves to 75 degrees of the yellow meridian. Crops with awns, such as wheat, are mature enough to collect seeds. Summer Solstice: Around June 22nd, the sun shone directly on the Tropic of Cancer, and "the sun arrived in the north, the days were long and the shadows were short", so it was called "summer Solstice". Slight summer heat: Around July 7, it entered a hot summer, which marked that most parts of China entered a high temperature season. Summer heat: About the 23rd, just around midsummer. This period is the hottest period in a year in China's vast areas, but there are also abnormal years, "there is no heat in summer" and there is more rain. Beginning of autumn: On August 7th or 8th, the vegetation begins to bear fruit, which is the harvest season. Summer: August 23 or 24, "going out" means ending. When the summer heat draws to a close, the weather will get cool. As it is autumn harvest, precipitation is very precious. The Millennium: Around September 8, the temperature dropped rapidly and the weather was cool because the direct point of the sun moved southward obviously. Water vapor close to the ground at night forms white dew on vegetation, hence the name "white dew". Autumnal Equinox: Around September 22nd, the point of direct sunlight returns to the equator, forming equal length of day and night. Cold dew: around 65438+1October 8. At this time, the direct point of the sun began to move south, the temperature in the northern hemisphere continued to drop, the weather was colder, and the dew was cold, hence the name "cold dew wind". First frost: 10 is "cold dew" around June 23rd, and the first frost period in the Yellow River basin is generally in the late June of 10, which coincides with the "first frost" solar term. Frost is very harmful to growing crops. Beginning of winter: Every year165438+1around October 7th. Xiaoxue:165438+1October 22nd is the "Xiaoxue" solar term. The influence of cold air in the north is enhanced, the temperature drops rapidly, and snowflakes appear in precipitation. However, this is the first snow stage, with less snow and fewer times. Most of the Yellow River Basin snows after the "light snow" solar term. Heavy snow: around 65438+February 7. At this time, the direct point of the sun is close to the tropic of Capricorn, and the days in the northern hemisphere are short and the nights are long. Winter solstice: around 65438+February 22, the sun almost points directly to the Tropic of Capricorn, and to the south of the day, a long shadow is formed in the northern hemisphere, making it the shortest day in a year. After the winter solstice, the days in the northern hemisphere became longer and the temperature continued to drop, entering the "March 9" with the lowest annual temperature. Slight cold: around 65438+10.5, the climate began to get cold. Great cold: 65438+1around October 20th, the coldest time of the year. Song points for solar terms: (1) Spring rains startle spring and clear valleys, summer is full and summer is Xia Xia, autumn is cold and frost, and winter snow is mild, with a difference of one or two days at most. The first half of the year is June 2 1 day, and the second half is August 23. (2) The plum blossoms in the West Garden will open to beginning of spring first, and it will rain in Yunzhen. At the beginning of fright, carp jumped into the river, and butterflies blossomed in the spring equinox. Flying kites in Qingming Festival is good, and sericulture in Grain Rain West Chamber is also suitable. Peony grows in summer and flowers are scattered, and Hosta is in front of the court. On the other side of the stream, mangoes grow with fishermen's music, and farmland cultivates the summer solstice. In summer, put on a white shirt, watch the wind in the river, and sleep in summer. Sunflowers bloom in early autumn, and cicadas listen in the west wing of summer. The green garden is stained with white dew, and the laurel tree is folded at the autumnal equinox. The cold dew on the dry mountain startled the swan goose, and the first frost appeared in Lu Hua's Polygonum Beach. Beginning of winter drinks Kirin Pavilion and Xiaoxue embroidered poems. Deep snow warms the red stove, and pipa is lazy to play the winter solstice. Xiao Han lies high in Handan dream, holding snow floating in the air to get cold. (3) The plum blossoms in early spring are particularly bright and rainy ... >>

Each of the 24 solar terms has several days. The solar term Song Chunyu is clear in spring, full of summer and hot in summer.

Autumn dew, autumn frost, little snow in winter and cold in winter.

Beginning of spring: beginning of spring is standing, and beginning of spring is beginning of spring.

Rain: It began to rain and gradually increased.

Sting: Sting means hiding. Sting refers to the sudden movement of spring thunder, which awakens the hibernating animals in the soil.

Equinox: Equinox means equal share. The vernal equinox means that day and night are equally divided.

Qingming: sunny and lush.

Grain Rain: Rain makes a hundred valleys. With sufficient and timely rainfall, cereal crops can thrive.

Long summer: the beginning of summer.

Xiaoman: Summer crops such as wheat are full of seeds.

Miscanthus species: Miscanthus crops such as wheat are mature.

Summer solstice: The hot summer is coming.

Summer heat: Summer heat means heat. Slight summer heat refers to when the climate begins to get hot.

Big institutions: the hottest time of the year.

Beginning of autumn: The beginning of autumn.

Summer heat: place means stop and hide. Summer is the end of hot summer.

White dew: The weather turns cold and the dew condenses into white.

Autumnal equinox: divided equally between day and night.

Cold dew: Dew is cold and will freeze.

First frost: it's getting colder and colder, frosty.

Beginning of winter: The beginning of winter.

Xiaoxue: It's starting to snow.

Heavy snow: the snowfall is increasing, and there may be snow on the ground.

Solstice of winter: the cold winter is coming.

Slight cold: The climate began to get cold.

Great cold: the coldest time of the year.

Excuse me: How many days are there in a solar term? There are four seasons in a year, and each season has six solar terms, which is 15 days.

Spring rain shocks spring and clear valley days, summer is busy and summer is hot, autumn dew and frost, winter snow and snow.