Zenith-distance


the angular distance from the zenith of a point on the celestial sphere to the sphere, measured along a great circle that is perpendicular to the horizon; the complement of the alt-tude.
historical examples

encyclopaedia britannica, 11th edition, volume 2, slice 7 various

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  • Zenith

    the point on the celestial sphere vertically above a given position or observer. compare nadir. a highest point or state; culmination. contemporary examples david’s bookclub: private guns, public health david frum march 30, 2013 david’s bookclub: mutual contempt david frum april 27, 2013 use islam to end the iranian regime nazee moinian june 23, 2009 […]

  • Zenith--telescope

    a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars. historical examples encyclopaedia britannica, 11th edition, volume 11, slice 6 various noun an instrument used to determine the lat-tude of stars, similar to the meridian circle but fitted with an extremely sensitive level and a declination […]

  • Zenith-tube

    a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.

  • Zenithal

    of or relating to the zenith; situated at or near the zenith. (of a map) drawn to indicate the actual direction of any point from the center point. historical examples encyclopaedia britannica, 11th edition, volume 17, slice 6 various encyclopaedia britannica, 11th edition, volume 17, slice 6 various encyclopaedia britannica, 11th edition, volume 17, slice […]

  • Zenithal-equidistant-projection

    azim-th-l equidistant projection.


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