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Hour circle   /ˈaʊər sˈərkəl/   Listen
Hour circle

noun
1.
A great circle on the celestial sphere that passes through both celestial poles.






WordNet 3.0 © 2010 Princeton University








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"Hour circle" Quotes from Famous Books



... the equator between the first point of Aries, and the hour circle which passes through any planet or star; or that point of the equinoctial, which comes to the meridian with any heavenly object, and is therefore similar ...
— The Sailor's Word-Book • William Henry Smyth



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