What is the origin of the Frost Descent solar term? Is it a good idea to get married on the Frost Descent date in 2020?

What is the origin of the Frost Descent solar term? Is it a good idea to get married on the Frost Descent date in 2020?
Introduction: Different solar terms have different origins, so what is the origin of the Frost Descent solar term? Is it a good idea to have your wedding date coincide with the Frost Descent in 2020? The ninth month of the lunar calendar brings you not only the fragrance of golden osmanthus, but also a pleasant short holiday. In the ninth month of the lunar calendar in 2020, learn about the beauty of late autumn with Shuimoxiansheng.com.

What is the origin of the Frost Descent solar term?

Since the early Qing Dynasty (1645), the solar terms have been divided according to the "Dingqi Method". When the sun reaches 210 degrees of the ecliptic longitude, it is the Frost Descent solar term. After the Frost Descent, the weather is colder in the morning and evening and hotter at noon, and autumn dryness is obvious.
The "Shuangjiang" solar term reflects the large temperature difference between day and night and the gradually colder weather. It does not mean that "frost" will fall when this solar term begins.
In fact, "frost" does not fall from the sky. It is condensed by water vapor on the ground encountering cold air due to temperature difference.
Since frost is a sign of cold weather and a large temperature difference between day and night, this festival, which represents a sudden drop in temperature and a large temperature difference between day and night, is named "Shuangjiang". The Frost Descent season marks the transition of Yang energy from being stored to being hidden. As the saying goes, "Frost Descent kills all the grass." After the Frost Descent, plants gradually lose their vitality and the earth becomes bleak.
The ancient book “Explanation of the Twenty-Four Solar Terms” says: “When the air becomes cold, frost falls, and the yin begins to condense.” It can be seen that “frost falls” means that the weather is gradually getting colder and the yin energy begins to condense.
After the Frost Descent solar term, cold air often invades, causing the temperature to drop sharply. The temperature difference between day and night changes greatly, and it feels noticeably colder in the morning and at night. “The most obvious thing about the Frost Descent solar term is the large temperature difference between day and night.

Is it a good idea to have your wedding date coincide with the Frost Descent in 2020?

Lunar calendar: September 7, 2020 Gregorian calendar: October 23, 2020, Friday, Scorpio [Today's old almanac is suitable] [Do not use it for major events on the day of the first day of the month] Move into the house, take up office, open the market, register, collect financial information, build a house, take in livestock, set up beds, pray for blessings, sacrifice, travel, raise livestock, seek wealth, seek medical treatment, remove crops, and consecrate [Today's old almanac is unsuitable] [Do not use it for major events on the day of the first day of the month] Repair, start construction, buy property, break ground, build embankments, release water, open warehouses, bury, marry, and accept betrothal gifts
Since this day is an unlucky day and "do not use it for important events on the day of the New Moon", it is not ideal to get married on the day of the Frost Descent. It is recommended to choose another auspicious day, because an auspicious day is generally required for marriage. At the same time, the aura of the solar term is unstable. Getting married during the solar term may have an adverse effect on married life.

Calculation method of frost

The calculation formula for the date of frost is: [Y*D+C]-L
Formula interpretation: Y=last two digits of the year, D=0.2422, L=leap year number, in the 21st century C=23.438, in the 20th century C=24.218.
For example: The date of Frost Descent in 2088 = [88×0.2422+23.438]-[88/4]=44-22=22, and Frost Descent will be on October 22.
Exception: For the year 2089, add 1 day to the result.

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