Word origin · etymology
Latin-prefix astronomical compound.
Circum- means around and polar refers to a pole. The noun names the condition of remaining around a celestial pole without setting.
How we know · epistemology
Latitude-dependent astronomical geometry
Latitude, declination and the horizon model determine this condition. A body near the opposite celestial pole can instead remain below the horizon without rising.
Skyfield: Almanac Computation — meridian transits and polar conditions ↗
Connected concepts
Browse other concepts in Astronomy & coordinates →
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Sources & provenance
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