What is the meaning of the 24 solar terms the specific meaning of the 24 solar terms

The 24 solar termsAccording to the sun in the ecliptic (i.e., the earth's orbit around the sun) on the position to differentiate.Saw the sun from the vernal equinox (longitude zero, at the moment the sun illuminate the equator) vertical, for every 15 degrees for a throttle forward;Run for a week and returned to the vernal equinox, is a tropical year, 360 degrees, thus divided into 24 solar terms.The date of the solar terms in the Gregorian calendar is relatively fixed, such as spring is always in the Gregorian calendar on February 3 solstice. 5.But in the lunar calendar, the date of the solar terms, is not good certain again in spring, for example, it is the earliest available in last year's lunar December 15, can be on the 15th at the latest.

Can be seen from the naming of the twenty-four solar terms, the division of throttle give full consideration to the season, climate, the change of the natural phenomena such as phenology.Among them, spring, summer, beginning of autumn and the beginning of winter is used to reflect the season, is the beginning of the four seasons in a year to a year is divided into spring, summer, autumn, winter four seasons.The vernal equinox, autumnal equinox, summer solstice, winter solstice, divided from astronomical perspective, reflects the turning point of the sun changes.Due to China's vast territory, has very obvious monsoon and continental climate, weather climate around the difference is huge, so there are differences in different parts of the four seasons change.

Slight heat and great heat, and the limit of heat, slight cold, severe cold and other five solar term reflects the change of temperature, used to represent the degree of fever in different periods of the year;Rain, grain rain, light snow, heavy snow, the four seasons reflected the precipitation phenomenon, suggests that the timing of rainfall, and strength;White dew, cold dew and frost three solar term reflects the water vapor condenses on the surface, sublimation phenomenon, but in essence reflects the process of the temperature decrease and degree: the temperature dropped to a certain degree, water vapor condensation phenomena;Any condensation temperature continues to fall, not only increased, and more and more cold;When the temperature dropped below zero degree centigrade, water vapor formula for cream.

Grain full, grain in ear is reflected about the crops mature and harvest;Insects awaken, qingming festival reflects the natural phenological phenomenon, especially insects, it USES the sky sting ray and the underground insect at the beginning of recovery, to predict the return of spring

Spring, summer, autumn begins, the beginning of winter, also called the "four vertical", the beginning of four seasons, respectively."Vertical" began.Generally in every year on the Gregorian calendar on February 4, 5, 7 August and after November 7."Four vertical" says is the beginning of the season to astronomical, say from climate, usually in the previous season, such as spring begins the Yellow River basin is still in the dead of winter.

The summer solstice, the winter solstice - called the "two to," said the perfection of astronomy in summer, winter."To" meaning, the most.The summer solstice, the winter solstice, generally in the Gregorian calendar every year on June 21 and 22 December.Summer rain, winter snow.

Spring equinox, the autumnal equinox - called the "dichotomy", said the length of day and night are equal.The meaning of "points" that divide.The two solar terms in the Gregorian calendar every year on March 20, and around September 23.

Rain - said precipitation, rainfall increased gradually.The Gregorian calendar year after the February 18 for rain.

Insects - heart at first glance, it awakened dormant in the soil hibernating animals.Then the rise of temperature quickly, have a heart to be gradually.The Gregorian calendar every year on March 5, or so for insects.

Qingming festival - contains composed of clear weather, fresh air, gradually warmer, lush.Another light wise.The Gregorian calendar every year around April 5 for tomb-sweeping day.

Grain rain, rain, greatly benefit the growth of grain crops.For grain rain after the Gregorian calendar every year on April 20.

Grain full, its meaning is the grain of summer crops begin to be grouted full, but not yet mature, just grain full, is not yet full.About the Gregorian calendar every year on May 21st for grain buds.

Grain in ear - such as wheat and barley are mans crops, and seed.Every year on 5th June for grain in ear.Grain in ear day on fire

Slight heat and great heat, and the limit of heat, heat is hot.It is not up to the hottest, great heat is the hottest season, the limit of heat is the day when summer is coming to an end.Respectively in the Gregorian calendar every year on July 7th, July 23 and August 23 or so.

The millennium - temperatures began to fall, the weather turns cool, in the morning with the dew on the grass.After is the millennium of the Gregorian calendar every year on September 7.

Cold dew, lower the temperature, the air has been dew, as a chill.On this day in every year on October 8.

Weather becomes cold, frost, began with cream.Frost is usually in the Gregorian calendar every year on October 23rd.

Light snow, snow, began to snow, the extent of the small and big snow said.Light snow in the Gregorian calendar every year on November 22, snow is about on December 7.

Slight cold, severe cold, the weather became cold, is not up to the cold, it is the coldest time of the year.The Gregorian calendar January 5, and the 20 or so of the month for the small and severe cold.

Twenty-four solar terms reflect the annual apparent motion of the sun, so the solar terms in the current calendar date basic fixed, in 6, 21, during the first half of the second half in 8, 23, no difference before and after 1 ~ 2 days.