Why are there four festivals in spring, summer, autumn and winter, and how many solar terms are there in a year? What are the names and characteristics of these solar terms?

Twenty-four solar terms are special festivals in the calendar to express natural rhythm changes and establish "December construction". Four years old, three months in spring, summer, autumn and winter, two solar terms each month, each solar term has its own unique meaning. Twenty-four solar terms accurately reflect the change of 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 rich 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.

spring

Beginning of spring: bucket handle point method: fighting refers to yin; Solar longitude degree method: the solar longitude degree is 3 15 degrees. Gregorian calendar February 3-5. Beginning of spring is the beginning of silver moon calendar.

Rain: fighting fingers; The longitude of the sun is 330 degrees. Gregorian calendar February 18-20.

Stunned: fight with your fingers; The meridian of the sun is 345 degrees. Gregorian calendar 05-07 March. Jing Ke is the beginning of Uzuki in Ganzi Prefecture.

Vernal equinox: fighting finger; The meridian of the sun is 0 degrees. March 20-22 of Gregorian calendar.

Qingming: bucket handle's fingering: Dou refers to B; Photometric method: from winter to the future 105 days; Degree method of the yellow meridian: the solar yellow meridian is 15. Gregorian calendar 04-06 April. Qingming is the beginning of the calendar.

Grain Rain: Dou Chenzhi; The meridian of the sun is 30 degrees. Gregorian calendar April 19-2 1.

summer

Long summer: refers to the southeast; The longitude of the sun is 45 degrees. Gregorian calendar 05-07. Long summer is the beginning of Ganzhili in Mitsuki.

Xiaoman: fighting nails; The meridian of the sun is 60 degrees. Gregorian calendar may 20-22.

Mangzhong: Fighting refers to yourself; The meridian of the sun is 75 degrees. Gregorian calendar 05-07 June. The awn seed is the beginning of the noon month in the dry calendar.

Summer solstice: fighting refers to noon; The meridian of the sun is 90 degrees. Gregorian calendar June 2 1-22.

Small summer heat: fighting refers to Xin; The solar calendar is 105. Gregorian calendar 06-08 July. The summer heat is the beginning of the last month of the dry calendar.

Summer heat: bucket finger c; The solar calendar is 120. July 22-24 of Gregorian calendar.

autumn

Beginning of autumn: refers to the southwest; The solar line is 135. Gregorian calendar 07-09 August. Beginning of autumn is the beginning of applying for the moon in the official calendar.

Summer: fighting fingers; The solar line is 150. August 22-24 of Gregorian calendar.

White dew: fighting finger; The solar line is 165. Gregorian calendar 07-09 September. Millennium is the beginning of a single month in the dry calendar.

Autumnal equinox: the bucket refers to itself; The solar line is 180. Gregorian calendar September 22-24.

Cold dew: fighting nails; The solar line is 195. Gregorian calendar 18-09 10 month. Cold dew is the beginning of the full moon in the dry calendar.

First frost: fingers; The longitude of the sun is 2 10. Gregorian calendar 65438+1October 23-24.

winter

Beginning of winter: the war refers to the northwest; The meridian of the sun is 225 degrees. Gregorian calendar165438+1October 7-8. Beginning of winter is the beginning of the official calendar.

Xiaoxue: Dou refers to himself; The meridian of the sun is 240 degrees. Gregorian calendar165438+1October 22-23.

Heavy snow: fighting fingers; The meridian of the sun is 255 degrees. Gregorian calendar 65438+February 6-8. Heavy snow is the beginning of the calendar month.

Solstice of winter: fighting fingers; The meridian of the sun is 270 degrees. Gregorian calendar 65438+February 2 1-23.

Slight cold: fighting fingers; The meridian of the sun is 285 degrees. Gregorian calendar 65438+1October 5-7. A slight cold is the beginning of an ugly month in the calendar.

Great cold: fighting refers to ugliness; The longitude of the sun is 300 degrees. Gregorian calendar 65438+1October 20th -2 1.