Aditya came to know from his father that pole star is a very special star. In ancient times, it was one of the main indicators of direction at night. What is so special about this star?

It's the largest star in the universe.

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It's the brightest star in the night sky.

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It does not change its position in the sky.

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It's the second closest star to Earth, first being the Sun.

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Solution

The correct option is C
It does not change its position in the sky.

Stars appear moving because of Earth's rotation. But pole star is located in direction of Earth's axis. So there is no effect of rotation on the angle of vision between Earth and the pole star. Hence, it does not move in the sky.

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Similar questions

Atul came to know from his father that pole star is the only star in the sky that does not move as the night passes. But, his father did not tell him the reason. Can you help him?

Which is the brightest star in the night sky. Why is it so bright or what makes it bright?

Statement 1: Venus is the brightest planet in the night sky.

Statement 2: Venus is often called morning or evening star, although it is not a star.

Q. The brightest star in the night sky as seen from earth is _______ .

Q. To which star do the following properties belong?
(a) It lies close to the axis of rotation of Earth.
(b) It is one of the brightest star in the sky
(c) All stars appear to revolve around it.
(d) It may not be visible from some points in the southern hemisphere.

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Aditya came to know from his father that pole star is a very special star. In ancient times, it was one of the main indicators of direction at night. What is so special about this star?

The correct option is C It does not change its position in the sky. Stars appear moving because of Earth's rotation. But pole star is located in direction of Earth's axis. So there is no effect of rotation on the angle of vision between Earth and the pole star. Hence, it does not move in the sky.

The correct option is C
It does not change its position in the sky.

Stars appear moving because of Earth's rotation. But pole star is located in direction of Earth's axis. So there is no effect of rotation on the angle of vision between Earth and the pole star. Hence, it does not move in the sky.