Hello everyone, today I will answer the question of the autumnal equinox. Many people don’t know the origin and customs of the autumnal equinox. Now let’s take a look!
Contents of this article
- When is the autumnal equinox?
- Autumnal Equinox Content
- Several versions of the Autumnal Equinox
- What are the three autumnal equinoxes
- Why is it called the autumnal equinox
- The origin and custom of the autumnal equinox
1. When is the autumnal equinox? Day of the month
The autumnal equinox is the midpoint of the three months (about ninety days) of autumn. The \”equinox\” in \”Autumnal Equinox\” means \”half\”. The autumnal equinox occurs every year after September 23 of the Gregorian calendar, when the earth reaches 180 degrees of longitude. On this day, the sun shines almost directly at the Earth\’s equator, and day and night are of equal length all over the world. During the autumnal equinox, most parts of our country have entered a cool autumn. The cold air coming from the south meets the gradually attenuating warm and humid air, resulting in repeated precipitation and the temperature also dropping again and again
2. Autumnal Equinox Content
1. Autumnal Equinox (Autumnalequinox) is the sixteenth solar term among the twenty-four solar terms. , the time is generally September 22nd to 24th in the Gregorian calendar every year. On the autumnal equinox, the sun reaches 180° of ecliptic longitude (the autumnal equinox point), almost directly hitting the earth\’s equator, and day and night are of equal length in all parts of the world (regardless of the refraction of sunlight by the atmosphere and the morning and evening shadows). In ancient times, there was a saying that \”spring offers sacrifices to the sun and autumn offers sacrifices to the moon.\” The autumnal equinox was once a traditional \”moon sacrifice festival.\” The Mid-Autumn Festival in 2019 comes from the traditional \”Moon Festival\”.
2. After the autumnal equinox, the direct point of the sun continues to move from the equator to the southern hemisphere, and the days begin to become shorter and the nights become longer in various parts of the northern hemisphere, that is, the days begin to be shorter than the nights within a day; The opposite is true for the Southern Hemisphere. Therefore, the autumnal equinox is also called the descending equinox. At the North and South Poles, on the autumnal equinox, the sun is above the horizon all day long. After that, as the sun\’s direct point continues to move southward, a six-month polar night begins near the North Pole, and the range gradually expands and then shrinks; a six-month polar day begins near the South Pole, and the range gradually expands and then shrinks.
3. Several explanations of the autumnal equinox
1. The first explanation is: the autumnal equinox is one of the twenty-four solar terms. On September 22 or 23 every year, when the sun reaches 180° of ecliptic longitude, it is the autumnal equinox.
2. On this day, day and night are equinoxed. It is equal to the time of night.
3. The second theory is: the autumnal equinox is one of the 24 solar terms of the lunar calendar, usually on September 22 of the solar calendar. to September 24.
4. The autumnal equinox is the middle of autumn, indicating the turning point of the season. The weather gradually turns cooler, the days become shorter, and the nights become longer. .
5. The two theories of the autumnal equinox are based on the observation of astronomical phenomena and seasonal changes.
6. No matter which way you say it, the autumnal equinox marks the official start of autumn, and people can feel the coolness of autumn and the seasonal atmosphere of harvest.
7. The autumnal equinox has different celebration methods and customs in different cultures and regions.
8. For example, in China, people will hold sacrifices to ancestors and pray for There are also traditional activities such as eating persimmons and outings during the harvest ceremony.
9. In Japan, people will hold ceremonies to celebrate the harvest and thank nature. There are also customs such as admiring the moon and eating moon cakes
10. In Western countries, the autumnal equinox is the eve of Halloween, and people will put on makeup, make pumpkin lanterns and other celebration activities. .
11. Different regions and cultures have unique understandings and ways of celebrating the autumnal equinox, which enriches the cultural connotation of the autumnal equinox.
4. What are the three autumn equinoxes
1. The three autumn equinoxes are early autumn, mid-autumn and mid-autumn. Late autumn. Early autumn generally refers to the period after the beginning of autumn, when the weather gradually turns cooler but still maintains higher temperatures. Mid-Autumn Festival refers to the full moon on this day.
2. Late autumn is when autumn is coming to an end and the temperature rises.One step lower and the leaves begin to turn yellow and fall.
5. Why is it called the autumnal equinox
The autumnal equinox is because it occurs in the autumn On this day, the direct point of the sun is located at 23.5 degrees above the equator, which exactly intersects with the earth\’s equatorial plane. At this time, the day and night time in the northern and southern hemispheres of the earth are equal, and the direct point of the sun is located on the earth\’s equator, which means that the sun\’s rays shine directly on the earth\’s equator. This day has equal lengths of day and night.
The autumnal equinox is an important solar term among the twenty-four solar terms, marking the official start of autumn.
On the day of the autumnal equinox, we can feel the breath of autumn. The weather is gradually getting cooler, and the temperature difference between day and night is also beginning to increase.
The autumnal equinox is also the harvest season for farmers. They will thank the earth for its gifts on this day. It is also a time for people to reunite. Families will have a reunion dinner together. , spend quality time together.
In addition, the autumnal equinox is also the eve of some traditional festivals. For example, the Mid-Autumn Festival is the first full moon night after the autumnal equinox. People will enjoy the moon and eat moon cakes together. , feel the romance and warmth of autumn.
6. The Origin and Customs of the Autumnal Equinox
1. The Autumn Equinox Solar Terms The name comes from the concept of ancient Chinese astronomy. It is believed that on this day, the direct point of the sun is located on the equator, and the day and night are equal. This phenomenon is called the autumnal equinox.
2. In ancient times, the autumnal equinox was a very important agricultural solar term. After the autumnal equinox, farmers begin to harvest crops in preparation for winter.
3. The Autumnal Equinox is also an important solar term for worshiping ancestors and gods and praying for blessings. During the autumnal equinox, we mainly eat some nutritious foods: glutinous rice, walnuts, chestnuts, peanuts, red dates, etc.
Okay, this is the end of the article, I hope it can help everyone.
