Polestar

Polestar refers to a star that is positioned nearly directly above the Earth's North or South Pole, making it a fixed point in the sky around which other stars appear to rotate. The most commonly known polestar is Polaris, located in the constellation Ursa Minor, which has been used for navigation due to its nearly stationary position in the celestial sphere. The term can also refer more generally to any guiding or focal point that helps in navigation or direction-finding, both literally and metaphorically. In various contexts, "polestar" can symbolize a central aim, guiding principle, or ideal that directs one's actions or thoughts.