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- Denoting a star that from a given observer's latitude does not go below the horizon during its diurnal motion.
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The meaning of CIRCUMPOLAR is continually visible above the horizon. How to use circumpolar in a sentence.
Denoting a star that from a given observer's latitude does not go below the horizon during its diurnal motion. The closer an observer is to one of the poles, the greater the portion of the sky that contains circumpolar stars. At the pole itself, all stars are circumpolar.
Circumpolar refers to celestial objects or stars that never set below the horizon, but instead appear to rotate around the celestial pole. These objects are visible in the night sky throughout the entire year, making a complete circle around the pole over the course of a day.
circumpolar in American English. (ˌsɜrkəmˈpoʊlər ) adjective. 1. surrounding or near either pole of the earth. 2. Astronomy. moving around either of the celestial poles. said of celestial objects, esp. stars, which never sink below the horizon.
adjective. (of a celestial body) continually visible above the horizon during the entire 360 degrees of daily travel. “a circumpolar star”. synonyms: seeable, visible. capable of being seen; or open to easy view.
A circumpolar star will be reach upper and lower culmination in the sky. A seasonal star will reach upper culmination in the sky and lower transit below the horizon. A star never visible from a location will technically culminate but both types will be beneath the horizon.
A celestial object that does not rise or set as seen from a given location, but circles around the celestial pole. To be circumpolar, an object must have a polar distance that is less than the observer’s latitude. At the Earth’s pole all objects above the horizon are circumpolar, but at the equator no object is circumpolar....
