The Polar Star, also known as Polaris, is a bright star located nearly at the north celestial pole. It is part of the constellation Ursa Minor and is often used for navigation because it remains relatively fixed in the sky while other stars appear to move. Polaris is approximately 433 light-years away from Earth and is classified as a supergiant star. Polaris is not only significant for navigation but also serves as a reference point for celestial coordinates. Its position makes it an important star for astronomers and navigators alike. The brightness of Polaris varies slightly, making it a type of variable star known as a Cepheid variable.