Which star lies immediately above the Earth's North Pole?

Pole Star Alpha Centauri Sun Sirius

Pole Star

The Pole star lies immediately above the Earth's North Pole. This makes Polaris, colloquially known as the "North Star", useful for navigation in the Northern Hemisphere: not only is it always above the north point of the horizon, but its altitude angle is always (nearly) equal to the observer's geographic latitude.