Why Polaris is known as the star that does not move?

Answer 1

Well, ALL stars move, its just that they are so far away that it will take many decades for any change to even start to become evident to the naked eye.
That being said, when looking at the moving sky then yes, Polaris is a constant in the night sky, where seemingly all the other celestial objects pivot about it. (obviously of course it is our planet that is moving and not the stars....)
It is pure chance that Polaris is (just about ) due north and so is a great aid to navigation to those using celestial objects to navigate; due to a thing called precession (youre online - you check it out) and the movement of the stars it wasnt always due north and in time to come it no longer will be.... tho it will be for the duration of our lifetime
As an aside if you can see the horizon (over the sea), measure the angle between the horizon and polaris and that will rather accuratley give you your latitude north of the equator....neat huh? :)

Answer 2

Polaris is a star, it's the name of a-Ursae Minor. Polaris is known as the star that doesn't move because it's almost directly (0.4 arc-minutes off axis) above the Earth's rotational axis. That's why it appears to be stationary in the night sky, although in reality it describes a very small circle 0.8 arc-minutes in diameter as the Earth rotates.

Polaris won't always appear where it does now, in 10-000 years or so it will be Vega (a-Lyra) that will be in roughly the same position, and the stars (including Polaris) will appear to rotate around it instead.

Answer 3

Because it *appears* not to. The north pole actually points a little aways from Polaris, so it too rotates around the pole. But you can barely see this with the naked eye. All other stars appear to rotate around it, but this is only from our perspective.

The North pole of the earth is more or less pointing at Polaris, but not forever. This is because the earth is spinning, like a wobbly top. It takes (I think) 26,000 years for the pole to complete one cycle, so in 26k years it'll be back to Polaris.

I heard somewhere that the next north star will be Vega.

Answer 4

Because it's directly above (more or less) the Earth's axis of rotation. Imagine sitting in a swivel chair. If you spin around and look up, the part of the ceiling directly above you will turn, but not move anywhere, whereas the other parts of the ceilling (like the corners) will move in and out of your line of sight as your spin. Same thing with Earth as it spins. The star Polaris is actually not a particular star; because the Earth actually wobbles a bit as it spins, it's rotational axis moves around a little and points at different stars at different times. Whichever star it points to at any particular time is called 'Polaris'.

p.s. the wobble is called 'precession' and takes thousands of years.

Answer 5

Polaris is the name of the star which is on a pole which is the North Pole. The North Pole does not move because it is in the middle and all the other stars turn around the pole. This is a practical explanation.

Answer 6

Beeecause it doesn't move?? All the other stars move across the sky as the earth turns

Answer 7

no stars move the earth on it axis and so all the stars appers to move but the star which is colinear to the axis dosnt apper moving so they are call pole stars

Answer 8

It's called that because its straight above in the middle so it doesn't move.

Answer 9

The star DOESNT move.

Answer 10

it is because it is located along the axis of the earth hence its movement is not detected by us coz of earth rotation.