When is the vernal equinox of 20 17?

The vernal equinox is around February 15 of the lunar calendar every year (about March 20 -2 1 in Gregorian calendar), and the sun is located at 0? (vernal equinox) Want to know the date and time of 20 17 vernal equinox? After the shock, the vernal equinox is approaching. Now, I'd like to introduce the specific time of solar terms in the 20 17 vernal equinox.

20 17 when is the vernal equinox? 20 17 Equinox Time: March 20th 18:28:35 20 17.

Calculation of vernal equinox date [y? d+c]-l

Interpretation of the formula: the last two digits of the number of years are multiplied by 0.2422 plus 20.646, and the integer is subtracted from the number of leap years. C value 2 1 century vernal equinox =20.646.

For example: 1992 vernal equinox date =[92? 0.2422+20.646]-[92/4] = 42-23 = 19, and March19 is the vernal equinox.

Exception: calculation result in 2084 plus 1 day.

According to the Astronomical Almanac of China published by the National Astronomical Observatory of China, the exact time of the vernal equinox of 20 12 is March 20th 13: 04.

Vernal equinox meteorological conditions and agricultural activities in March, after the solar terms surprised, we ushered in the vernal equinox season. The temperature has obviously risen this month, which is a busy season for sowing and planting all kinds of spring crops. Spring? Integral? Pride, busy farming? . However, the weather changes greatly, and some areas often have bad weather such as strong winds and dust, and sometimes even the phenomenon of late spring cold.

Main farming and matters needing attention at this time:

1, continue to rush to plant all kinds of melons, vegetables, beans and spring cabbage, and do a good job in scaffolding, topdressing, ridging, pruning and pruning tomatoes, peppers and eggplant in winter;

2. Rush to sow early rice and cultivate strong seedlings; Continue to rush to plant dry land crops such as corn, sugarcane, peanuts, soybeans and watermelons, and strengthen early field management;

3. Grab Honda's rake, send fertilizer to the fields and clean up the countryside;

4. Check and supplement the early planted corn seedlings, cultivate the soil and topdressing to prevent corn borer and black caterpillar;

5. Turn over the green manure field, start transplanting and throwing seedlings in the later stage, and plan to take cold-proof measures to arrange sowing in the middle rice area where ratooning rice is stored;

6. Continue to plant sugarcane in spring, pay close attention to breaking the ridge of ratoon sugarcane, check and replenish seedlings, and apply strong tillering fertilizer to sugarcane in autumn;

7, sweet potato seedling and planting spring sweet potatoes;

8. Planting Saigon bananas and bananas, applying sufficient base fertilizer and spraying root water;

9. Apply flower-protecting and fruit-protecting fertilizers to fruits such as Sanhua plum, peach, citrus and Shatian pomelo;

10, continue to plant trees and pay close attention to the construction of oil-tea forest and bamboo forest. , tree seedling, control Dendrolimus punctatus;

1 1, strengthen forest patrol to prevent forest fires;

12, using rice fields to cultivate fry, fish species and loach;

13, egg hatching and seedling raising;

14, strengthen the management of livestock breeding in spring, prevent and treat diseases, and do a good job in raising cattle and buffaloes.

The interesting folk custom of vernal equinox 1, the beginning of spring eggs.

It is said that tens of millions of people all over the world are doing the vernal equinox every year. Vertical egg? Experiment. As early as 4,000 years ago, China had the tradition of dividing eggs in spring to celebrate the arrival of spring. Later it gradually evolved into a tradition of praying for good luck.

Want to succeed? Vertical egg? You can choose a smooth and symmetrical fresh egg that has just been laid for four or five days and try to stand it on a flat table. Although there are many losers, there are also many winners. Someone explained that this has nothing to do with? Equinox? The earth's axis is tilted by 66.5 degrees, and the orbital plane of the earth's revolution around the sun is in a state of relative balance of forces, which is very favorable? Vertical egg? . It is said that a stable egg can last for more than ten days without external interference.

Step 2 eat spring vegetables

In some areas of Lingnan, there is another custom that cannot be celebrated on the vernal equinox, called? Eat spring vegetables at the vernal equinox? . ? Spring vegetables? This is a wild amaranth. What do the villagers call it? Hao Chunbi? . At the vernal equinox, people go to pick spring vegetables. When searching in the wild, it is often green and thin, about the length of a palm.

Picked spring dishes usually have fish fillets at home? Cook soup? , what's your name? Spring soup? . There is also a folk jingle that describes it like this: Spring soup fills the dirty and washes the liver and intestines; Family, old and young, safe and healthy. ? A year's plan lies in spring, and the vernal equinox is coming. Faced with the germination of all things, people naturally want to pray for peace and health at home.

3. Spring Festival

At the vernal equinox in February, people began to pay homage to their ancestors, also known as the Spring Festival. Before people sweep the graves, they should hold a grand ancestor worship ceremony in the ancestral hall, kill pigs and sheep, ask drummers to play, read the eulogy and quote three praises. At the beginning of the spring equinox, the graves of ancestors and distant ancestors are swept first, and the whole family and the whole village have to be dispatched on a large scale, and the team often reaches hundreds or even thousands. After the ancestral graves of Kaiji and Yuanzu were swept, they were divided into rooms to sweep the graves of ancestors in each room, and finally each family swept the graves privately.

In most Hakka areas, ancestor worship and grave sweeping in spring begin at the vernal equinox or earlier, and must end in Tomb-Sweeping Day at the latest. There is a saying everywhere that after the Qingming Festival, the tomb door is closed, and the ancestors' spirits are not needed.

Step 4 stick the sparrow's mouth

According to custom, farmers have a holiday on the vernal equinox. Every family should eat dumplings, and a dozen or thirty dumplings that don't contain hearts should be cooked and placed on the edge of outdoor fields with thin bamboo forks, which is called sticking sparrows' mouths so as not to destroy crops.

The vernal equinox is also a good time for children to fly kites. Especially at the vernal equinox. Even adults are involved. Kites are divided into Wang Zi Kite, Silver Carp Kite, Myxomoth Kite, Leigong Kite and Moon Light Kite. The biggest kite is two meters high, and the smallest one is two or three feet. There are kites on the market, many of which are smaller than others' and suitable for children to play with, but most of them are posted by themselves, and the bigger ones have to compete with each other to see which one flies high.

5. Memorial Day

In the Zhou dynasty, there was a ceremony to worship the sun at the vernal equinox. In the Qing Dynasty, Pan Rongbi's "Ji Sheng at the Age of Jingdi": Sacrificing the sun at the vernal equinox and the moon at the autumnal equinox is a grand ceremony of the country, and scholars are not allowed to worship at will. ? Most places where ancient emperors offered sacrifices to the sun were located in the suburbs of Beijing. In the Yuan Dynasty, there were altars. Since then, emperors of Ming and Qing Dynasties have sacrificed Daimyojin (the sun) on the altar at the vernal equinox. Asahi is set at the beginning of the vernal equinox. Every year, A, C, E, G and Ren are sacrificed by the emperor himself, and the rest are sacrificed by officials.

The present altar in Beijing was built in the ninth year of Jiajing in the Ming Dynasty (1530), and was dedicated to the sun god by the emperors of the Ming and Qing Dynasties (ancient name? God of Daming? ) location. From the first year of Qin Long in the Ming Dynasty (1567), more than 400 years later, five emperors, the Apocalypse, Chongzhen, Qianlong, Jiaqing and Daoguang, came to worship. Twenty-three years after Daoguang Qing Dynasty (1843)? Sacrifice day? The activity gradually died out and has been interrupted for more than 60 years/kloc-0.

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