Pole Star is a member of the solar system

Because the pole star is so close to the Earth's axis of rotation, it appears to be fixed in one location.

It seems to be directly overhead when viewed from either the North or South poles.

We can find the Pole star by extending an imaginary line northward from the two stars at the end of the Ursa Major constellation.

Therefore, Pole Star is a star, and stars are not part of our solar system.