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abstraction > mathematical concept > number > quantity > equatorial sky area > circumpolar region
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circumpolar region
subjectfact 
circumpolar regionhas coordinates whose equatorial latitude is greater than the Earth latitude of the observer minus 90 degrees2001-09-27 09:33:34.0
is a part of celestial sphere2001-09-27 09:33:34.0
has purpose to define a part of the sky which can be observed all year at the observers location2001-09-27 09:33:34.0
has definition a region defined by an equatorial latitude above which stars are visible all year (depends on observers location on Earth)2001-09-27 09:33:34.0
is an instance of equatorial sky area2001-09-27 09:33:34.0
equatorial sky areais defined using equatorial coordinates2001-09-27 09:33:34.0
quantityhas unit2001-09-27 09:33:12.0
numberhas value2001-09-27 09:32:57.0