What does Arctic daylight mean? What does daylight mean?

1.Daytime: Daytime. Day, that is, day.

2.Daylight occurs anywhere on Earth when exposed to the sun.

3.Where are you, like in China, you will encounter daylight almost every day! In addition to encountering severe sandstorms.

Or very cloudy weather, and a total solar eclipse.

, there is a temporary "dark day" (it should be daytime, but for some reason it is dark), and normally there is daylight every day.

4..There will be daylight in the North Pole and nearby areas of the Northern Hemisphere for more than 100 days before and after the summer solstice, and in the South Pole and nearby areas of the Southern Hemisphere for more than 100 days before and after the winter solstice. This is called "polar day".

5.Polar day: It is the Earth's North and South Pole Circle.

The phenomenon that the sun never sets all day long is called "polar day". (Conversely, if the sun is not seen all day, it is the polar night).

6.Because of the rotation of the earth.

The axis is skewed, and the position of the sun directly on the ground changes regularly with the annual motion around the sun. When the apparent motion of the Sun is north of the celestial equator, that is, when the declination of the Sun is positive ( ), the Sun mainly shines on the Northern Hemisphere, and the Arctic Circle will appear "Polar Day". And in the Antarctic Circle, there will be a "polar night."".

If the apparent motion position of the Sun is south of the celestial equator, that is, when the sun's declination is ( ), then the Antarctic Circle is a polar day.

Arctic daylight means 24 hours a day, all day, no night.

Meaning of daylight:

Daytime: Brightly lit and illuminated.

Pinyin: [ bái zhòu ].

Cited explanation: Du Pengcheng, Chapter 3 of "Defending Yan'an": "A bright moon hangs in the sky, illuminating the ravine like day. ”

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1. 白昼, a Chinese word, pinyin is bái zhòu, which means day, in the day; In broad daylight.

2. Source: "Crane Guanzi Duwan": "Guangxu knows that there is no way, the upper chaos astronomy, the lower extinction of geography, the middle and the end of the people, the rule gradually ends, so it is heard but not heard, seen and seen, daytime and dark, righteous and untrue."

Hanshu Jia Yi Biography": "In the daytime, the officials in the capital robbed the gold. Yan Shigu Note:

Day, day. Those who speak white are not obscure. ”

Within the Polar Circle, there is a period of time each year when the sun never sets.

1. The beginning time of the polar day at the North Pole is: the vernal equinox, around March 21 (20th and 22nd) every yearIt is also the time when the polar day ends at the South Pole.

3. The vernal equinox is the date when the direct point of the sun moves north to the north side of the equator, from this day, the sun can be seen at the north pole and the polar day begins.

4. The autumnal equinox is the date when the direct point of the sun moves south to the south side of the equator.

Polar day is 24 hours and all daytime; The polar night is all night.

Polar day and polar night, a natural phenomenon in the polar regions of the earth, the so-called polar day, that is, the sun never sets, the sky is always bright, this phenomenon is also called white night; The so-called polar night is the opposite of the polar day, the sun never comes out, and the sky is always dark. In the high latitudes of Antarctica, there is none"The sun rises and the sun sets"There is no 24-hour day and night cycle. Polar day and polar night are natural phenomena unique to the Polar Circle.

It occurs within 66 degrees 34 minutes north latitude of the Arctic Circle and 66 degrees 34 minutes south latitude of the Antarctic Circle.

The Arctic has long nights and nightless days. It's not like we have it here, it's scheduled in 24 hours, it's almost a whole year. That is, near the North Pole, there is a continuous daylight for half a year, and at this time, the dim sunlight does not leave the Arctic Ocean.

surface, is a daytime with little change; And from September onwards, I didn't see the sun for half a year, and it was a long night. Only the brilliant aurora dazzles the figure of the explorer. It resembles fire, curtains, paintings, searchlights, 、......Colorful and varied, it arouses people's various reveries.

In addition, there are parhelic suns and mirages. It has been studied that these are charged particles in the air in the solar wind.

The effect of collisions with each other caused by "high-altitude lightning" or refraction phenomena.