Final answer:
Polaris, also known as the pole star or north star, is the star that is currently closest to the North Celestial Pole. It moves the least amount as the northern sky turns each day.
Step-by-step explanation:
The star that is currently closest to the North Celestial Pole is Polaris, also known as the pole star or the north star. Polaris is not exactly at the pole, but its daily circle is very small, making it appear as if it is at the pole. It is unique because it moves the least amount as the northern sky turns each day.