The concrete explanation of the twenty-four solar terms in the calendar

Twenty-four solar terms originated in the Yellow River Basin. As early as the Spring and Autumn Period, four solar terms were set, namely, mid-spring, mid-summer, mid-autumn and mid-winter. After continuous improvement and perfection, by the Qin and Han Dynasties, the 24 solar terms had been completely established. 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. \x0d\ \x0d\ The time when the sun moves along the longitude 15 degree of the Yellow River from zero degree is called "a solar term". It runs 360 degrees every year, and * * * experiences 24 solar terms, twice a month. Among them, the first solar term of each month is "solar term", that is, beginning of spring, Jingzhe, Qingming, Changxia, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, Heavy Snow, Xiaohan, etc. 12 solar terms; The second solar term of each month is "Zhongqi", that is, there are 12 solar terms such as rain, vernal equinox, Grain Rain, Xiaoman, summer solstice, great heat, intense heat, autumnal equinox, first frost, light snow, winter solstice and great cold. "Solar term" and "neutral qi" appear alternately, each lasting 15 days. Now people have called "solar terms" and "neutral gas" solar terms. \ x0d \ x0d \ 24 solar terms reflect the apparent movement of the sun in one year, so the dates of solar terms are basically fixed in the current Gregorian calendar, with the first half of the year being 6th and 2 1, and the second half being 8th and 23rd, with a difference of 1 ~ 2 days. \x0d\x0d\ In order to make it easier to remember, people have arranged 24 solar terms: \x0d\ XXIV solar terms Song \x0d\ Spring rain shocks spring and clear valleys, summer is full of mountains and summer is connected, \x0d\ autumn dew and autumn frost, winter is snowy and winter is chilly. \x0d\ Seven-character Poems of Twenty-four Solar Terms \x0d\ The earth goes around the sun once, and it is completed once a year. \x0d\ A year is divided into December, and the 24 solar terms are closely linked. \x0d\ According to the Gregorian calendar, the two gases will not change every month. \x0d\ The first half of the year is Saturday and Monday, and the second half is August and Wednesday every year. \x0d\ These are festivals, and the difference is only one or two days. \x0d\ There are twenty-four sections in sequence, and remember the following formula: \x0d\ January slight cold is followed by January severe cold, and it rains in beginning of spring in February; \x0d\ vernal equinox in March, Qingming Grain Rain in April; \ x0d \ Month Chang Xia and Xiao Man, June Summer Solstice Company; \x0d\ It is hot in July and hot in summer, and it is hot in beginning of autumn in August; \x0d\ September meets the autumnal equinox in the Millennium, and the cold dew begins to frost in October; \x0d\ There is a light snow in 1 1 month in beginning of winter, and the winter solstice welcomes the New Year in the heavy snow. \x0d\ Pay close attention to peak season production to ensure timely harvest. With the spread of China calendar, the 24 solar terms have spread to many parts of the world. \ x0d \ x0d \ beginning of spring: The intention is to start, and beginning of spring is beginning of spring. \x0d\ Rain: It began to rain and gradually increased. \x0d\ Sting: Sting means hiding. Sting refers to the sudden movement of spring thunder, which awakens the hibernating animals in the soil. \x0d\ Equinox: Minute means equal share. The vernal equinox means that day and night are equally divided. \x0d\ Qingming: Sunny and lush. \x0d\ Grain Rain: Rain gives birth to hundreds of valleys. With sufficient and timely rainfall, cereal crops can thrive. \x0d\ Changxia: long summer. \x0d\ Xiaoman: Summer crops such as wheat are full of seeds. \x0d\ awn seed: crops with awns such as wheat are mature. \x0d\ Summer Solstice: The hot summer is coming. \x0d\ Slight summer heat: summer heat means heat. Slight summer heat refers to when the climate begins to get hot. \x0d\ Department: The hottest time of the year. \x0d\ beginning of autumn: The beginning of autumn. \x0d\ Summer: place means to stop and hide. Summer is the end of hot summer. \x0d\ White dew: The weather turns cold and the dew turns white. \x0d\ autumnal equinox: divided equally between day and night. \x0d\ cold dew: dew is cold and will freeze. \x0d\ First frost: The weather is getting colder and colder, with frost. \x0d\ beginning of winter: The beginning of winter. \x0d\ Xiaoxue: It's starting to snow. \x0d\ Heavy snow: With the increase of snowfall, there may be snow on the ground. \x0d\ Winter Solstice: The cold winter is coming. \x0d\ slight cold: the climate began to get cold. \x0d\ Great Cold: The coldest time of the year.