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It's an illusion caused by the actual rotation of the earth.
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∙ 14y ago
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What appears to revolve around Polaris due to earth's rotation?
Due to the vast distance between the earth and polaris, the earths axis of rotation essentially lines up with polaris at all times, so when the stars are visible, and viewed from the north pole, the earths rotation causes the stars to appear to rotate around polaris.
Do the stars in the constellation Ursa major appear to rotate clockwise or counterclockwise?
In the Northern Hemisphere, when facing North, towards the Pole Star (Polaris) Ursa Major and surrounding constellations, rotate counter-clockwise (right to left).Turn round to face south (with Polaris behind you) the stars rotate clockwise (left to right).
What causes the circumpolar stars to appear to move around polaris?
The apparent daily movement of the stars in the sky is a reflection of Earth's rotation. Earth rotates around its axis; as a reflection of this, the entire sky rotates around an "axis", which is simply the extension of Earth's axis. By chance, the star Polaris is almost exactly on the line of the Earth's axis, extended into space. So, as the Earth rotates the stars appear to rotate around Polaris. Circumpolar stars never go below the observer's horizon, so they just seem to go in circles around Polaris.
Stars appear to rotate about a point in the sky Which direction does this point lie in?
No. The earth rotates, not the stars. yelp! stars rotate around the earth gravaltational pull receptic system. The answer to this question is impossible to find because you don't rotate around objects, you revolve around them. So a better question would be "Do stars revolve around the Earth?" The answer to that question is no. Now stars do rotate, but most of them don't revolve around anything. (Some revolve around other stars.)
What causes the stars to appear to make one complete circle around polaris every 24 hours?
The stars all rotate about an imaginary axis line that goes through the poles of the earth. From our veiw point, the fixed stars will move across the sky, corresponding to this spin. The polaris star is almost on this imaginary axis line - if you were to carry on extending it out to this star.
What exactly is the north star?
It is a star called Polaris. It is not a particularly bright star. It is important though. As seen from the Northern Hemisphere, it is normally seen to be in the same location and all other stars appear to rotate around that point.
Why does pole star appear larger and brighter than other stars?
It doesn't. A lot of stars seem larger and brighter than it. In fact, Polaris is the 49th-brightest star in the sky. To us, it is not a particularly bright star. It is important because it seems to be still as other stars rotate around it.
What can you use polaris to figure out?
Polaris is also known as the north star. It is always due north in the sky, unlike the other stars which appear to rotate about it due to the spin of the earth. You can use it to find North, from this you can then work out other direction.
Does a star move at a slow motion that we can't see?
Stars move just like the planets and everything else in the universe. Because they are so far away, it takes a long time to see even large distances. The Earth rotates, so that stars in the sky appear to rotate across the heavens each night. Because of its location relative to the North Pole axis of the Earth, the stars appear to rotate in the sky around Polaris or the North Star.
From the northernhemispherecircumpolar stars appear to be circling the?
North Star, Polaris
From the northern hemisphere circumpolar stars appear to be circling what?
Polaris
Why does the starry sky over the north pole appear to rotate counter clockwise around one star polaris?
That happens because that star Polaris just happens to be in line with the polar axis of the Earth, in other words a line from the south pole to the north pole would eventually pass through Polaris. Actually it is not exact but Polaris is within one degree of the true pole.So if you sit out and watch Polaris its direction will never change as the Earth rotates with you sitting on it. It's always in the same place (almost) and if you try an experiment with a globe you can see why.On the other hand all the other stars appear to rotate.
