The Pole Star, also known as Polaris, is the brightest star in the constellation Ursa Minor. It is located nearly directly above the North Pole, making it a crucial point of reference for navigation in the Northern Hemisphere. Polaris is approximately 433 light-years away from Earth and is part of a multiple star system. Polaris is unique because it remains almost stationary in the sky while other stars appear to move around it. This characteristic has made it an essential guide for travelers and explorers throughout history. Its position aligns closely with the Earth's rotational axis, marking true north for navigators.