Question

why does all the constellations appear to revolve around the pole star

Answer 1

ROTATION. If you watch the night sky for a few hours, you will see that thestars appear to rotate about a fixed point in the sky (which happens to benear the pole star, Polaris). This motion is due to the Earth's rotation. ... The Sun, Moon, and planets appear to move across the sky much like thestars.

Answer 2

all the constellations appear to revolve around the pole star because of the rotation of the earth