This is because of the precession of the Earth's equinoxes as well as the motion of the stars, themselves. The precession of the equinoxes takes around 25,770 years before returning to the same position.
North star, or Polaris, is the name of a bright star that is CURRENTLY near the celestial north pole. Since the position of the north pole will change in the future, Polaris will still be called Polaris, but it will no longer be the north star.
Polaris is known by other names such as "pole star" or "North pole". Polaris has also been referred to as "Steadfast".
The North Star The Pole Star Polaris
Polaris, also known as the north star or pole star.
Polaris stands for the pole star. since it is located directly above the north pole.
The pole star (Polaris) is not constant. The Earth's precession creates a continually varying point in space where the North Pole points. Right now, it is within a degree of Polaris, but there is a 26,000 year period where Polaris will not always be the pole star.
Polaris or the Pole star
No, Polaris would not be overhead if you were at the South Pole. The North Star -- Polaris -- is not visible from the Southern Hemisphere.
Polaris, the North Star, is located near the North Celestial Pole which is visible only from the Northern Hemisphere. In the Southern Hemisphere, there is no bright star close to the South Celestial Pole like Polaris because the South Celestial Pole does not have a similarly positioned bright star. Therefore, observers in the Southern Hemisphere cannot see Polaris due to its location in the sky.
The present star is in the late stages its life as Polaris. In the Roman Era, the North Pole was more or less equidistant from Kochab and the present Pole Star. In the year 3000, Alrai will be closer to the Celestial Pole and the present star will cease to be Polaris.
It is known as Polaris.
Polaris and the North Star are the only two names I know.