Science, asked by harshitraj9883, 1 year ago

Why do the stars seems to be stationery

Answers

Answered by shereef4me
3

First, it isn’t quite stationary. While Polaris is quite close to the North Celestial Pole (NCP), it is about 1/2 of a degree off of it. So it does trace a very small circle around the pole itself.

The reason it appears to be nearly stationary is that, for starters, none of the stars move (well, not much or very fast anyway, from our perspective, but that’s another discussion). WE move, as Earth rotates. And Polaris is REALLY far away, about 400 light years. But because we are on Earth, the stars SEEM to move in the sky, even though they’re just sitting there and we are the ones spinning.

Put another way, imagine a giant laser pointer placed precisely atop our north pole on Earth, aimed right at the NCP, Polaris would appear to trace a small circle around it as the Earth rotates. But because the Earth moves so slowly from our human perspective, Polaris appears stationary while the rest of the stars appear to move in the sky around the NCP.


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