When is the Spring Equinox? What is the origin of the Spring Equinox?
Introduction: I believe most people know that the Spring Equinox is one of the 24 solar terms. On this day, the sun will directly shine on the equator, the Southern Hemisphere will enter the Autumnal Equinox, and the Northern Hemisphere will enter the Spring Equinox. The arrival of the spring equinox means more rain. This is also the best time for spring ploughing. So when is the Spring Equinox 2017? What is the origin of the Spring Equinox? Let’s learn more about it together! Mr. Shui Mo summarized many festivals and solar terms in the second month of the lunar calendar to help people better understand how to face every day in February.When is the Spring Equinox in 2017?The time of the spring equinox in 2017 is 18:28:35 on March 20, 2017. The calculation method of the spring equinox on the 23rd day of the second month of the lunar calendar is: [Y*D+C]-LFormula interpretation: Multiply the last two digits of the year by 0.2422, add 20.646, take the integer, and subtract the number of leap years. The C value of the 21st century vernal equinox = 20.646. For example: The date of the vernal equinox in 2092 = [92×0.2422+20.646]-[92/4]=42-23=19, March 19 is the vernal equinox. Exception: For the year 2084, add 1 day to the result. Origin of the Spring EquinoxThe vernal equinox begins on March 20 (or 21) and ends on April 4 (or 5) every year. The vernal equinox begins on March 20 or 21 of the Gregorian calendar every year when the sun reaches 0 degrees of ecliptic longitude (the vernal equinox). The length of day and night on this day is equal, which is exactly halfway through the ninety days of spring, so it is called the "Spring Equinox". In ancient times, it was also called "the middle of the day", "the division of day and night", and "the moon of mid-spring". The significance of the Spring Equinox is, firstly, that the day and night are equally divided, 12 hours each; secondly, in ancient times the spring season lasted from the Beginning of Spring to the Beginning of Summer, and the Spring Equinox falls in the middle of the three months of spring, dividing the spring season equally. On the day of the vernal equinox, the sun shines directly on the equator, and the day and night are almost equal. Afterwards, the position of direct sunlight gradually moves northward, and the days begin to get longer and the nights shorter. The Spring Equinox is a relatively important solar term. It not only has astronomical significance: the day and night are equal in the northern and southern hemispheres; it also has obvious climatic characteristics. During the Spring Equinox, my country enters a bright spring except for the Qinghai-Tibet Plateau, Northeast China, Northwest China and the northern part of North China. On the vast land, willows are green, warblers are flying, grass is growing, wheat is jointing, and rape flowers are fragrant.In ancient my country, the vernal equinox was divided into three stages: "The first stage is the arrival of the oriole; the second stage is the sound of thunder; the third stage is the beginning of lightning." This means that after the vernal equinox, swallows will fly from the south, and there will be thunder and lightning in the sky when it rains. "Collected Explanations of the 72 Seasonal Changes in the Lunar Calendar" states: "In the middle of February (in the Xia calendar), 'equinox' means half, which is half of the ninety days, so it is called 'equinox'. 'Autumn' has the same meaning." "Spring and Autumn Annals: The In and Out of Yin and Yang" by Dong Zhongshu of the Han Dynasty states: "In the middle of spring, the yang is due east and the yin is due west, which is called the Spring Equinox. The Spring Equinox is when yin and yang are half and half, so the day and night are equal and the cold and heat are balanced." The corresponding phenological phenomenon in the ancient Yellow River Basin was "the arrival of the black bird, thunder sounds, and lightning begins" (see "Nongsang Tong Jue"). At this time, overwintering crops in most parts of my country enter the spring growth stage. A folk proverb in central China goes, "On the Spring Equinox, the wheat starts to grow, and every moment of it is worth a thousand gold coins." The Spring Equinox is also a traditional festival. In the Zhou Dynasty, there were festival ceremonies on the Spring Equinox. "The Book of Rites" says: "Sacrifice the sun on the altar." Kong Yingda's commentary says: "It refers to the Spring Equinox." This custom has been passed down from generation to generation. Pan Rongbi of the Qing Dynasty wrote in "The Annals of the Capital's Annual Customs": "The Spring Equinox and the Autumn Equinox are grand ceremonies for the state, and the common people are not allowed to offer sacrifices on their own." Before and after the Spring Equinox in the Qing Dynasty, ministers would offer sacrifices in the palace and temples, and aristocratic families would also offer sacrifices to their ancestral temples on this day. "Jingchu Sui Shi Ji" by Liang Zonghuan of the Southern Dynasties recorded: "On the Spring Equinox, people planted fire-preventing grass on the roof. There was a bird like a crow that crowed before the rooster, and people waited for this bird to enter the fields, taking it as a sign." In the Ming Dynasty, people in Zibo, Shandong planted trees on this day, made spring wine, and brewed cool wine. The Wenshui County Annals states: “On the Spring Equinox, people brew wine and mix cool food, and transplant flowers and trees. Summary: After reading the above about the origin of the 2017 Spring Equinox, you can better understand the Spring Equinox. I hope the above content can help you! |
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