cirkumpolär

Cirkumpolär describes celestial objects or constellations that are always visible in the night sky from a particular latitude. For observers in the Northern Hemisphere, a cirkumpolär object never sets below the horizon. The visibility of a cirkumpolär object depends on the observer's latitude. The North Celestial Pole is the key point for determining cirkumpolär objects in the north. Stars near the North Celestial Pole, such as Polaris, will appear cirkumpolär to most observers in the Northern Hemisphere. Conversely, in the Southern Hemisphere, objects near the South Celestial Pole are cirkumpolär. The Arctic Circle is a latitude line where all stars north of the celestial equator are considered cirkumpolär. The concept is the opposite of circumpolar, which refers to objects that circle the celestial pole but may set below the horizon. The term is derived from Latin, meaning "around the pole."