Why is the winter solstice date in the Gregorian calendar? Are the solar terms calculated according to the Gregorian calendar?
There are two ways to express dates: lunar calendar and solar calendar. In ancient times, most things were expressed in terms of the lunar calendar, but now many people know the solar calendar. Why is the winter solstice date in the Gregorian calendar? Are the solar terms calculated according to the Gregorian calendar? The eleventh month of the lunar calendar is a new month. What should we do and what should we avoid in this new month? Follow Shuimoxiansheng.com and take a look at the contents of the lunar calendar for November 2019.Why is the winter solstice date on the Gregorian calendar?2019 Winter Solstice solar term date: December 22, 2019, Sunday, Capricorn (Gregorian calendar)"Date of Winter Solstice": Calculation formula: (YD+C)-L 《1》Formula interpretation: Y=last two digits of the year, D=0.2422, L=leap year number, 21st century C=21.94, 20th century=22.60. 《2》Note: The date of the winter solstice in 2088 = [88×0.2422+21.94]-[88/4]=43-22=21, the winter solstice is on December 21st. 《3》Exception: The calculation results for 1918 and 2021 shall be reduced by 1 day. The Origin of the Solar Calendar Calculation of the Winter Solstice: On the winter solstice, the sun's direct point on the earth moves to the southernmost point of the year - the Tropic of Capricorn. After this day, the sun's direct point begins to move northward; when the direct point moves to the equator, it is the vernal equinox, and when it moves to the Tropic of Cancer, it is the summer solstice. In ancient times, my country used a gnomon to observe the length of the sun's shadow to calculate the solar terms. Obviously, on the summer solstice, the pole's shadow is the shortest in the year, and on the winter solstice, the pole's shadow is the longest in the year. The change in the length of this shadow is easy to observe, so it is very accurate. Are the solar terms calculated according to the Gregorian calendar?——The solar terms are calculated according to the Gregorian calendar.《1》The 24 solar terms are a cultural heritage created by the working people of my country. They reflect seasonal changes, guide agricultural activities, and affect the food, clothing, housing and transportation of thousands of households. 《2》Since the main political activity centers of our country have been concentrated in the Yellow River Basin over the past 2,000 years, the 24 solar terms were established based on the climate and phenology of this area. 《3》The 24 solar terms are divided according to the position of the sun on the ecliptic (the orbit of the earth around the sun). 《4》 The sun starts from the vernal equinox (0 degrees of ecliptic longitude, when the sun shines vertically on the equator), and every 15 degrees forward is a solar term; a circle of movement and return to the vernal equinox is a tropical year, which totals 360 degrees, so it is divided into 24 solar terms. The dates of the solar terms are relatively fixed in the Gregorian calendar. For example, the beginning of spring is always between February 3rd and 5th in the Gregorian calendar. ——Why not follow the lunar calendar? In the lunar calendar, the dates of the solar terms are difficult to determine. Taking the Beginning of Spring as an example, it can be as early as December 15th of the previous lunar year and as late as January 15th. |
<<: When is the Winter Solstice in 2019? What are the taboos during the Winter Solstice?
Recommend
Are people born on August 30, 2020 in the lunar calendar Libra? What's your personality like?
The constellations of people born at different tim...
Are there thirty days in the twelfth lunar month of 2021? When is New Year’s Eve?
The twelfth month of the lunar calendar is the las...
Can I move house on the seventh day of the fourth lunar month in 2018? Is it a good idea to move house on the seventh day of the fourth lunar month?
Introduction: In our country’s tradition, moving u...
Analysis of the day of October 13th in the lunar calendar in 2021, is it possible to move?
The pros and cons of moving at different times are...
Is the fate of the rat baby born in the Great Heat of 2020 good? Is the Great Heat of 2020 a good day?
Introduction: Every child will have a different de...
May 23rd of the lunar calendar 2019, is it a good day?
May is also known as the Pu month. The most prosp...
Check the lunar calendar for the first day of the twelfth lunar month in 2017. Is it a good day?
Most traditional festivals are concentrated in th...
Is it suitable to pick up the car on July 22 of the lunar calendar in 2020? Is it a good time to pick up a car during the lunar calendar?
Is it suitable to pick up the car on July 22 of t...
Is it taboo to break ground and repair graves on the fifth day of the first lunar month in 2020? Analysis of offerings to the God of Wealth on the fifth day of the first lunar month
Introduction: You have to choose an auspicious day...
Is the fate of a boy born on the 19th day of the twelfth lunar month in 2019 good? What are the advantages and disadvantages?
Every child born is a wonderful gift from God, and...
How about April 27th of the lunar calendar in 2022? Is it an auspicious day for funerals and burials?
The fourth month of the lunar calendar usually has...
How will the 24th day of the 9th lunar month of 2018 be? Is the fortune on this day good or bad?
Introduction: Each of the 365 days in a year unfol...
The sixth day of the second lunar month in 2018 is a good day according to the lunar calendar.
The lunar calendar determines whether a day is go...
Is there a 30th day in the twelfth lunar month? Is it the same day every year?
Everyone says New Year’s Eve as “New Year’s Eve”, ...
List of auspicious days for setting up the bed in November of the lunar calendar 2019!
Introduction: You also need to choose an auspiciou...