which star would take place of polaris as pole star and when?

Answer 1

Today, the pole star, the star almost directly aligned with the earth's axis in the northern hemisphere, is Polaris. Four or five thousand years ago, however, the north pole of the earth's spin axis pointed to Thuban, and in about 12,000 years from now, it will point near Vega. While very subtle, the observable motion of precession over a long period of time is undeniably clear. Unfortunately, the theories behind its cause are not........read "Lost Star of myth and time", if you want to know more about the cellestail cycles of our solar system. Author is Walter Cruttenden

Answer 2

On a 25,000 year cycle, Vega in Lyre and Thuban in draco are some of the major stars that would be an eventually back to Polaris.

Answer 3

The first star (Crotu) of Ursha Major and 2000 years later