Question

explain how you can locate the pole start with the help of Ursa major

Answer 1

Find Ursa Major, the "big dipper". Follow the lines of the two "bowl" stars Merak and Dubhe out from the lip of the bowl. Go seven times the distance between the stars, and you will see one star which is not particularly bright but is brighter than the other stars around it. This is Polaris, the "North Pole" star. To check your work, follow the line from the dipper to Polaris an equal distance across the sky. You should be in the middle of a giant crooked "W" of stars; this is the "Chair of Cassiopeia".