Why is Polaris always high in the north?

Because the earth rotates around the earth axis, and Polaris is very close to the north extension line of the earth axis, Polaris is almost motionless in the sky at night, with its head tilted to the north, so it can indicate the north.

Although the tilt direction of the earth's axis will change because the earth revolves around the sun all year round, the distance between Polaris and the earth is much larger than the radius of the earth's revolution, so the change of the earth's axis caused by the earth's revolution can be ignored.

So all the year round, we see that the position of Polaris in the sky seems to be motionless in the north. In fact, we just can't observe the subtle changes with the naked eye, and we feel that the earth axis always points to Polaris.

Extended data

Function:

Polaris is a very important indicator of field activities and ancient navigation direction. From stargazing to astrophotography, the accurate positioning of the Equatorial Observatory in the observation room is also a very important constellation to identify the direction. Because Polaris is closest to true north, people on earth have been navigating by its starlight for thousands of years.

Symbolic meaning:

It is precisely because the position of the North Pole star is relatively stable and not easy to change, so it gives people a sense of loyalty and has its own position. From the perspective of life, Polaris has the significance of guiding us to our goals, just as it can tell us the direction.

Baidu encyclopedia-Polaris

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