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vertical circle
noun
, Astronomy.
- a great circle on the celestial sphere passing through the zenith.
vertical circle
noun
- astronomy a great circle on the celestial sphere passing through the zenith and perpendicular to the horizon
vertical circle
- A great circle on the celestial sphere that passes through the zenith and the nadir and thus is perpendicular to the horizon.
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Word History and Origins
Origin of vertical circle1
First recorded in 1550–60
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Example Sentences
The Azimuth of a star is the angle between the meridian and the vertical circle passing through the star.
From Project Gutenberg
In this event the cloud will exhibit no iridescence, but, instead of it, a vertical circle through the sun will present itself.
From Project Gutenberg
If the wire, with its lines of force, be bent into the form of a vertical circle 1⅛ in.
From Project Gutenberg
A Vertical Circle is any great circle that passes through the zenith.
From Project Gutenberg
The altitude of a celestial object is its distance above the horizon measured on the arc of a vertical circle.
From Project Gutenberg
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