Where do polar day and polar night phenomena occur? How are polar day and polar night formed?

Everyone must have heard of polar day and polar night, but they don't know what it is. In fact, polar day and polar night are natural phenomena in the polar regions of the earth. Polar day means that the sun never sets and the sky is always bright. This phenomenon is also called white night. Polar night is the opposite of polar day. The sun never comes out and the sky is always dark. So where does the polar day and polar night phenomenon appear? Let's learn about it together!

Contents of this article

1. Where do polar day and polar night phenomena occur?

2. How are polar day and polar night formed?

3. What are the longest durations of polar day and polar night?

Where do polar day and polar night phenomena occur?

Polar day and polar night both occur in the Arctic and Antarctic circles of the Earth. The so-called polar day, in simple terms, means that the sun is always hanging in the sky and the sky is always bright, while the polar night is the opposite of the polar day, the sun never comes out and the sky is always dark.

Polar day and polar night are caused by the fact that while the Earth revolves around the sun, it also rotates around its own tilted axis.

Every year, polar day and polar night alternate at the North and South Poles, with daylight for six months and darkness for six months in a row.

How are polar day and polar night formed?

Polar day and polar night are caused by the fact that the Earth rotates around its tilted axis while revolving around the Sun in an elliptical orbit. Polar day and polar night are natural phenomena in the Earth's polar regions. Polar day means that the sun never sets and the sky is always bright. This phenomenon is also called white night. Polar night is the opposite of polar day. The sun never comes out and the sky is always dark.

Polar day and polar night are natural phenomena unique to the Arctic Circle, occurring within 66 degrees 34 minutes north latitude in the Arctic Circle and within 66 degrees 34 minutes south latitude in the Antarctic Circle.

Every year, polar day and polar night alternate at the North and South Poles. There are roughly six consecutive months of polar day and six months of polar night in a year. The time of the alternation of day and night changes with the increase in latitude. The higher the latitude, the longer the polar day and polar night.

In the Antarctic region, as the latitude decreases, the duration of polar day and polar night becomes shorter. At the Arctic Circle, polar day and polar night only last one day each.

What are the longest periods of polar day and night?

It's all 24 hours.

The formation of polar day and polar night is caused by the fact that the earth rotates around its own tilted axis while revolving around the sun in an elliptical orbit. It turns out that when the earth rotates, the earth's axis forms an inclination angle with its vertical line. Therefore, when the earth revolves, there is a period of 6 months when one of the two poles faces the sun and it is all day; the other pole faces away from the sun and it is all night. This magical natural phenomenon of the South and North Poles is not found in other continents. Every year, "polar day" and "polar night" appear alternately at the South and North Poles. In a year, there are roughly six consecutive months of daylight and six months of darkness. The time when day and night alternate changes with the increase in latitude. The higher the latitude, the longer the polar day and polar night. The longest polar day and polar night is 24 hours.