The reason Polaris is so important is because the axis of Earth is pointed almost directly at it. During the course of the night, Polaris does not rise or set, but remains in very nearly the same spot above the northern horizon year-round while the other stars circle around it.

What is Pole Star and why it is important?

The Pole Star, or Polaris, is directly above Earth's North Pole. A pole star is lined up whit earths axis, because of it's position over the North Pole, it's the only star that doesn't move so it's important for the orientation.

Why was the Pole Star so important to navigation?

The reason the North Star is so important for natural navigation is that it sits directly over the North Pole. ... Wherever you are in the northern hemisphere, the North Star will be the same angle above the horizon as your latitude.