hour-circle definition

  • noun:
    • In astronomy: Any great-circle regarding the sphere which passes through two poles: so named because the time regarding the day is ascertained if the group upon which the sunlight is actually for the full time becoming is ascertained.
    • A circle upon an equatorial telescope lying synchronous towards jet of planet's equator, and graduated into hours and subdivisions of hours.

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  • Sentence for "hour-circle"
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  • Hypernym for "hour-circle"
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