Definitions from Wiktionary (hour circle)

▸ noun:  (astronomy) The great circle through an object whose location is to be determined and the two celestial poles.
▸ Also see hour_circle


▸ Words similar to hour circles
▸ Usage examples for hour circles

▸ Idioms related to hour circles
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▸ Words that often appear near hour circles
▸ Rhymes of hour circles

▸ Invented words related to hour circles