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Stars And Solar System

Question

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All stars except the pole star, appear to move from east to west. Give reasons.

Solution

The apparent motion of stars in the sky is due to motion of earth around its axis. The earth rotates on its axis from west to east, due to which the stars appear to move in the opposite direction from east to west.
Pole star appears to be stationary because it lies on the axis of rotation of earth, which is fixed in space and does not change with time.

Some More Questions From Stars and Solar System Chapter

Phases of the moon occur because

The planet which is farthest from the Sun is __________.

The planet which appears reddish in colour is ________.

A group of stars that appear to form a pattern in the sky is known as a ___________.

A celestial body that revolves around a planet is known as __________.

Shooting stars are actually not _________.

Asteroids are found between the orbits of and __.

Mark the following statement as true (T) or false (F):

Pole star is a member of the solar system.

Mercury is the smallest planet of the solar system.

Mark the following statement as true (T) or false (F):

Uranus is the farthest planet in our solar system.

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