How to Adjust the Temperature of Yaoaote Digital Display Regulator

Almost know

Download the application

The autumnal equinox and solar terms are equally divided day and night around

How to Adjust the Temperature of Yaoaote Digital Display Regulator

Almost know

Download the application

The autumnal equinox and solar terms are equally divided day and night around the world. Today, you can determine the east-west direction of your position.

Geography salon

Wechat official account "Geography Salon" shares and learns geography knowledge useful for life.

Human beings live in a natural geographical environment. In order to survive and develop, human beings usually need to adapt to the local natural geographical environment, which is called adapting to the weather and geographical location. Among them, climate is the most cyclical natural factor. In an agricultural society, agricultural production needs to adapt to climate change and not go against the farming season. To this end, our ancestors invented the traditional calendar in China, also known as the lunar calendar.

Today is the autumnal equinox

The lunar calendar in China is based on the changing cycle of the lunar phases, and each lunar phase changes to January. With reference to the solar year as the length of a year, the average calendar year is adapted to the tropical year by setting 24 solar terms and leap months. The twenty-four solar terms are beginning of spring, rain, fright, vernal equinox, Qingming, Grain Rain, Changxia, Xiaoshu, Busy, Summer Solstice, Xiaoshu, Dashu, beginning of autumn, Chushu, Millennium, Vernal Equinox, Cold Dew, First Frost, beginning of winter, Light Snow, Winter Solstice, Slight Cold and Severe Cold.

The 24 Solar Terms

2021September 23rd is the solar term of this autumn equinox. When the sun reaches 180 at the autumnal equinox, it is about 15 days after the Millennium solar term, which is the fourth solar term in autumn, usually in late September of Gregorian calendar, usually on September 22, 23 or 24. At the autumnal equinox, the direct point of the sun is located at the equator, and the height of the sun gradually decreases from the equator to the north and south poles at noon. Today, the height of the sun at noon on the equator reaches 90. At 30 north latitude, the height of the sun at noon today is 60; 40 north latitude, 50 sun at noon today, and so on.

Motion diagram bisecting the sun and the direct point of the sun

Judging from the length of day and night, during the autumnal equinox and solar terms, the world is divided equally between day and night. Except for the North Pole and the South Pole, the length of day is 65,438+02 hours and the length of night is 65,438+02 hours all over the world today. As the saying goes: "The autumn equinox is half cloudy and half sunny, and the summer is cool." Today is the process of the direct point of the sun moving from north to south, just above the equator. That is to say, after today, the direct point of the sun will move to the southern hemisphere, and the northern hemisphere will enter a winter half year with short days and long nights, while the southern hemisphere will enter a summer half year with long days and short nights.

autumn

From the perspective of sunrise and sunset, when the sun shines directly in the northern hemisphere, the sun rises in the northeast and sets in the northwest all over the world (except in extreme areas of day and night); When the sun shines directly in the southern hemisphere, the sun around the world rises in the southeast and sets in the southwest; When the sun shines directly on the equator, the sun all over the world rises from due east and sets from due west. Today is the solar term of the autumnal equinox, so the rising direction of the sun today is due east of your position, and the setting direction is due west. If possible, go and observe!

Sun motion map from bisector of 40 north latitude to heliograph.

Edited on 20021-09-23, the copyright belongs to the author.

Agreed 1

comment

Relevant suggestions

What shower gel can give yourself a pot-stewed taste?

Peach blossom fairy's answer

How deep is the water in the decoration industry?

Wang Zhifeng, director of Xiaomi, answered.

Do you have a cheap and high-end necklace?

Elizabeth Melon's Answer

In 2022, the heater recommended the whole house comfortable heating purchase strategy attached (heater/oil-filled radiator/quick heater/skirting line)

Mao Xu's answer

Air Purifier Recommended Home Air Purifier Purchase Guide (including IAM, Shule's, 352, Bruyal and other brands)

Blake's answer

Why must humidifiers have purification function? Several studies you didn't know about.

Winters' answer

Self-taught undergraduate course from registration to graduation, the whole process of nanny-level self-taught examination, 3 minutes to understand (65438+February update self-taught examination and certificate acquisition strategy)

Yuan Xiaonan, a senior in the self-study exam, answered.

Please recommend a mattress with a single bed in a hundred yuan dormitory. Is it more reliable on Taobao?

Van Fan Fan's answer

20 kinds of wired headphones recommended by the Student Party, and the depth evaluation/ranking/purchase guide of wired headphones within 100 yuan.

The clown's answer to the call of the beast

Spread out completely

Everyone is still looking for it.

The vernal equinox and solar terms are equally divided day and night.

What are the two solar terms in the world where day and night are equal?

Which solar term means equal day and night?

What is the solar term of equal day and night?

Classic sentences of autumn mood

Autumn equinox solar term poem

The solar terms equal to day and night are

What does it mean to divide the day and night equally?

Is the autumnal equinox divided equally between day and night?

Autumn equinox solar terms proverb

Global solar terms with equal length of day and night

Which solar terms are divided equally between day and night?

Autumn equinox solar terms

When will the day and night be divided equally?

What does the autumnal equinox mean?

Autumn equinox solar terms warm heart sentences

Autumn equinox solar terms

The solar term of equal day and night is

Which solar terms are divided equally between day and night?

What is the solar term of equal day and night in the northern hemisphere?

The answers to the first two words are day and night.

The autumnal equinox is as long as day and night.

Twenty-four solar terms are equally divided day and night

Which solar term is short days and long nights?

Which solar term is the alternation of day and night?

What does it mean to divide the day and night equally?

Autumn equinox solar term poem

The ancient poem "Autumn Equinox"

Autumn equinox solar terms slogan

When will the day and night be divided equally?

Autumn equinox solar terms

The solar term of equal day and night is

Which solar terms are divided equally between day and night?

What is the solar term of equal day and night in the northern hemisphere?

The answers to the first two words are day and night.

The autumnal equinox is as long as day and night.

Twenty-four solar terms are equally divided day and night

Which solar term is short days and long nights?

Which solar term is the alternation of day and night?

What does it mean to divide the day and night equally?

Autumn equinox solar term poem

The ancient poem "Autumn Equinox"

Relevant suggestions

An article that takes you to understand the autumnal equinox _ Zhihu.

Here is chatting, sharing practical educational ideas, popular science knowledge, celebrity gossip and ancient poems from time to time, paying attention to me and not getting lost ~0 1 solar terms introducing the spring rain, the summer is full and the summer is hot, the autumn dew and the autumn frost, the winter snow and the winter cold. The two festivals in each month remain the same, with a difference of one or two days at most. The first half of the year is June 2 1 day, and the second half is August 20. ...

Twenty-four solar terms: autumnal equinox _ Zhihu

The autumnal equinox is the sixteenth solar term and the fourth solar term in autumn. The sun reaches the yellow meridian180; Every year from September 22 to September 24 of the Gregorian calendar is the autumnal equinox. At this time, the sun shines almost directly on the earth, and the autumnal equinox time all over the world is as long as day and night. The autumnal equinox means "equal share" and "equal share", which means equal share in autumn. ...

Solar terms? The autumnal equinox is day and night, cold and hot, and the most beautiful thing in the world is the autumnal equinox! _ Zhihu

The autumnal equinox is the sixteenth solar term in the twenty-four solar terms of the lunar calendar, and the autumnal equinox in 20 18 is on September 23rd. There is a saying in China's ancient book "Spring and Autumn Stories, Yin and Yang Incoming": "The autumnal equinox is half closed, so it is cold and summer day and night". With the approaching of the autumnal equinox, the 90-day autumn is over half. From this day on, the days are getting shorter and the nights are getting longer and longer. ...

Scientific knowledge of vernal equinox and solar terms _ Zhihu

First of all, the meaning of the festival name "vernal equinox" is half, that is, it is divided into two parts, day and night are equally divided, and cold and summer are balanced. In addition, the vernal equinox also means sharing spring equally. Traditionally, it is spring from beginning of spring to long summer, and the vernal equinox is in the middle of three spring months. Therefore, the vernal equinox was also called "Japan-China", "Day and Night" and "Midspring Moon" in ancient times. At the vernal equinox, the sun ...

Review the necessary knowledge in the first round of senior three-Earth movement and atmospheric movement _ Zhihu

Part I Planets, Earth and Climate. Geographical location description: absolute location: latitude and longitude location (hemisphere location, special latitude and longitude line), relative location of hot zone: land and sea location: a certain location on a continent; Close to the sea in a certain direction; Located in an inland neighborhood; Bordering a country; Be located in an economic position in a certain region: where? ...

Related search

What does the autumnal equinox mean?

Autumn equinox solar terms warm heart sentences

Autumn equinox solar terms

The solar term of equal day and night is

Which solar terms are divided equally between day and night?

What is the solar term of equal day and night in the northern hemisphere?

The answers to the first two words are day and night.

The autumnal equinox is as long as day and night.

Twenty-four solar terms are equally divided day and night

Which solar term is short days and long nights?

Which solar term is the alternation of day and night?

What does it mean to divide the day and night equally?

Autumn equinox solar term poem

The ancient poem "Autumn Equinox"