What is the reason for the earliest autumn equinox in 124 years this year?

This year we ushered in the earliest autumnal equinox in nearly 124 years, which is one of the 24 solar terms。Geographically, the autumnal equinox means that the direct sunlight moves from the Tropic of Cancer to the equator, the northern hemisphere ends the summer days and nights, and on the day of the autumnal equinox, the global day and night equinox, and the direct sun begins to move towards the Tropic of Capricorn, the days are getting shorter and the nights are getting longer, and our days will gradually become shorter, the sunrise will become late, and the sunset will become earlier. The reason why this year's autumn equinox came early is also related to natural factors such as astronomy and geography, as well as the calendar.

In fact, the time of the arrival of the same solar term is more or less different every year, and basically every year it is delayed by five or six hours compared with the previous year. However, if it is postponed, the same solar term will be completely disrupted and transferred to other seasons after many years, and it will no longer have the role of suggesting solar terms. Therefore, every leap year, the solar term will come about 1 day earlier, and this year is 2020, which is a leap year, so it is normal for the autumnal equinox to come early.

We all know that in a normal year there are 28 days in February, and in leap years it is 29 days, so since February has one more day, it is only natural that the autumnal equinox will be one day earlier. But this year's early is not the usual early, but the earliest autumn equinox in 124 years, which is also related to the lunar calendar, this year belongs to the Gengzi year, and it also belongs to the leap year, and the leap year in the double sense makes this year's autumn equinox come earlier。As the crystallization of the wisdom of the ancients, the solar terms are very accurate, and even if they come earlier in the date, they are still effective in promoting production activities.

Therefore, we can see that the early arrival of the autumn equinox is related to the movement of the sun and the provisions of the calendar, which is the experience condensed by the ancients after long-term observation and summary, which has guided people's endless life and struggle for thousands of years, so that we can make correct judgments in agricultural production and avoid losses caused by weather and season. Even if the autumn equinox comes early, it is still in line with the calendar in nature, and it has no negative impact on our daily life and labor.

2020 is a leap year, this year's February also has 29 days, the year of the rat is also a leap year, the same solar term, every year is 6 hours or 5 hours behind the previous year, and in the event of a leap year, it will be 24 hours earlier on this basis, therefore, after a long period of accumulation, this year's autumn equinox comes earlier.

Mainly because this year is a leap year, coupled with the accumulation in the past, so this year's autumn equinox came relatively early, in fact, this is a relatively normal phenomenon, we don't have to worry too much, and it has not had a great impact on our lives, pay attention to keeping warm in time.

2020 is a 'leap year', coupled with the accumulation over the years, which eventually led to the early arrival of this year's 'autumnal equinox'. Personally, I think this is a normal calendar phenomenon and will not adversely affect people's production and life.

According to astronomers' explanations, the date of the same solar term encountering a leap year is one day earlier than the previous year, 2020 is a leap year, and the year of the Gengzi Rat is also a leap year, plus the accumulation of previous years has led to the early arrival of this year's autumnal equinox.

YesAt 21:31 on September 22, the "autumn equinox" solar term will be ushered in, which is a solar term that heralds a good harvest. Astronomical experts saidThis year's "autumnal equinox" is the earliest since 1896

Shi Zhicheng, a member of the Chinese Astronomical Society and a director of the Tianjin Astronomical Society, said that the time it takes for the earth to circle the sun is called a "return year" or "solar year", and the sun's path against the background of the starry sky is called the "ecliptic".

Since ancient times, the "vernal equinox" has been set at 0 degrees, and every 15 degrees of the sun's movement on the "ecliptic" has been set as a solar term or mid-term, so the 24 solar terms are 24 specific moments, not specific 24 days.

The "Autumn Equinox" is the 4th solar term of autumn and the 16th of the 24 solar terms. This year's "autumn equinox" is at 21:31 on September 22, which is also the earliest "autumn equinox" in the past 124 years, and it dates back to 1896, and the exact time of this year's "autumn equinox" is 21:03 on September 22.

This year's autumn equinox is the earliest autumn equinox in 124 years, and the arrival of the autumn equinox indicates a good harvest, which is a solar term that everyone likes very much. After the autumn equinox, the weather also begins to slowly get cooler, so everyone must add clothes to prevent colds from being caught due to changes in the weather. As we all know, the 24 solar terms are the wisdom of the ancients, and it is people who divide the seasons, and according to the weather, in order to be able to better grow crops and master the seasons.

And the autumn equinox is produced in order to better divide the autumn, because the autumn equinox is just in the middle of the 90 days of autumn, so it just divides the autumn.

It can be said that the autumn equinox is a special day, from this day onwards the days in the northern hemisphere become shorter and the nights longer, and it also represents the end of summer and the beginning of autumn, the temperature is full and cool, and the real harvest season begins on this day.

Because the autumn temperature drops quickly, so people in this season are also very busy, autumn harvest, autumn ploughing, autumn planting, as if in a race against time, in the most suitable time to do the most suitable thing, will have a bumper harvest in the coming year. If the autumn harvest is not carried out quickly, then the crops are likely to freeze to death, and the hard work of the year will be in vain.

An autumn rain and a cold", the ancients are really wise, after the autumn equinox, many places in our country have begun to cool down, into the cool autumn, the weather will become colder and colder, but this time will not rain often, this is the experience of the working people, and it is also applicable to this day. The autumn equinox is one of the earliest solar terms established by the ancients, which shows how important this day is, using this day to divide the autumn and prepare for the beginning of the autumn harvest, which is the origin of the autumn equinox. In ancient times, when science and technology were not so developed, people used these solar terms to determine how to allocate the time to plant crops, which was the crystallization of wisdom.

China's traditional culture and customs are always amazing, and they have also laid the foundation for our current scientific and technological development. Understand the autumn equinox ** is not a deeper impression of this solar term, after the autumn equinox is autumn, is the harvest is also the beginning.

First, according to the ancient Chinese beginning of spring, summer, autumn, and winter as the four seasons began to divide the four seasons, the autumn equinox day lived in the autumn 90 days, and the autumn was equally divided; The second is that at this time, the day and night are divided into 24 hours a day, 12 hours each.

The autumnal equinox is the day that divides the entire autumn season. The autumn equinox is the day between the 90 days from the beginning of autumn to the fall of frost. Because autumn is equinoxal, it is called the autumn equinox.

The autumnal equinox is a solar term before the beginning of winter, and this year because of the leap month, the autumnal equinox is early.

The autumnal equinox is the sixteenth of the 24 solar terms, which refers to the equinox of the sun reaching 180 degrees of ecliptic longitude, almost directly hitting the earth's equator, and equinoxes day and night all over the world (except the poles). Therefore, the autumn equinox arrives, the climate turns from hot to cold, and the autumn equinox solar term is ushered in on September 22 or 23 of the Gregorian calendar every year, and the autumn equinox is ushered in at 21:31 on September 22 of the Gregorian calendar this year, the earliest autumn equinox in the past 124 years.

The origin of the autumnal equinox solar term is roughly as follows: in ancient times, the beginning of spring, the beginning of summer, the beginning of autumn and the beginning of winter were the four seasons. The autumnal equinox is the equinox that divides the time of autumn, in the middle of the 90 days of autumn.

The autumnal equinox is a geographical concept of the division of seasons, when the angle of the sun directly to the equator of the northern hemisphere is 0 degrees, the southern hemisphere enters autumn at this time, which becomes the autumnal equinox.

The cold and heat are peaceful day and night, and the yin and yang are half in the autumn equinox. It was also one of the earliest confirmed solar terms in ancient times.

The autumn equinox is the fourth solar term of autumn, one of the earliest solar terms in our country, "fen" is half of the meaning, the autumn equinox is in the autumn ninety days, the autumn is equally divided, after the autumn equinox, the days and nights begin to become shorter.

According to the cloud of "Spring and Autumn Dew, Yin and Yang in and Out": "The autumn equinox is accompanied by yin and yang, so the day and night are even, and the cold and summer are even." "The autumnal equinox" has two meanings:

First, according to the ancient Chinese beginning of spring, summer, autumn, and winter as the four seasons began to divide the four seasons, the autumn equinox day lived in the autumn 90 days, and the autumn was equally divided;

The second is that at this time, the day and night are divided into 24 hours a day, 12 hours each. This day is the same as the "vernal equinox" day, the "autumnal equinox" day, the sun shines almost directly on the equator, after this day, the position of direct sunlight moves south, and the northern hemisphere has short days and long nights.

The new season should have a new atmosphere, every day is a day full of hope, the autumn breeze is cool, the rain is continuous, the wind is wafting ten miles of osmanthus fragrance, the apricot leaves fall to the ground, and the big trees that should be lush and green have become protruding. In the face of this year's early autumn phenomenon, we can also use some geographical knowledge to answer, this is probably the earth and the sun, there is some distance between them, probably the sun is on the ecliptic, every 15 degrees, is a solar term or mid-term, China's 24 solar terms are also because the sun runs slowly like this.

It is understood that each solar term is delayed by a few hours in each year. This year, 2020, is a leap year, and the leap year solar term will be 24 hours earlier than the solar term time of the previous year; And because this year is the Year of the Rat, it is also a leap year from the perspective of the lunar calendar, and under the influence of the two leap years, the autumn equinox arrived early this year, becoming the earliest autumn equinox in 124 years.

This year's autumn equinox is the earliest year in 124 years, astronomy and astronomy expert Shi Zhicheng explained that for the same solar term, each year will be six or five hours behind the previous year, and in the case of leap years, it will be 24 hours earlier on this basis, because 2020 is a leap year, therefore, the 2020 autumn equinox Gregorian calendar date will be advanced to September 22, 2019 on the basis of September 23, 2019.

Because there is a leap month in the first half of this year, the autumnal equinox comes earlier.

Because there is an extra leap month this year, which is equivalent to one more month this year, the autumn equinox came early this year.

Because it is a leap year, the same solar term is 5 hours behind the previous year each year, but 24 hours earlier in a leap year.

Because it is a calendar phenomenon, 2020 is a 'leap year', and the year of the Gengzi Rat is also a 'leap year', coupled with the accumulation over the years, it eventually leads to this year's 'autumn equinox' coming earlier.

In fact, many people in daily life do not pay attention to these solar term changes, let alone calculate the maximum of 124 years, and everyone does not need to be afraid, there is no big impact. Just remind us that we must add clothes sooner or later, otherwise it is easy to catch a cold, pay attention to protect your body,The body is the capital of the revolution, this year's wish is good health, and next year's wish is national peace and security.

Today's autumn equinox, experts say: this year's autumn equinox is the earliest in 124 years, come and see why.

It won't have much impact on the crops, but the autumn harvest and planting will be earlier, because the autumn equinox is earlier, the weather changes earlier, and the farmers will be busier.

Yes, if the twelve solar terms are not very regular, the impact on crops is still relatively large.

There may be a point where an early fall entry indicates that there will be less sunlight and that plants that need photosynthesis will grow slowly.