bn:00044986n
Noun Concept
Categories: Circles, Celestial coordinate system
EN
hour circle
EN
A great circle on the celestial sphere that passes through both celestial poles WordNet 3.0
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EN
In astronomy, the hour circle is the great circle through a given object and the two celestial poles. Wikipedia
Part of celestial coordinate system Wikidata
The great circle through an object whose location is to be determined and the two celestial poles. Wiktionary
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