Zenith
2 definitions

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That point, on any given observer's celestial sphere, that lies directly above him; the point that is elevated 90° from all points on a given observer's astronomical horizon.

Diametrically opposite the zenith is the observer's nadir.

FK Reading Ease
35.2

FK Grade Level
College
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  • "zenith": the point of the celestial sphere which is directly overhead
    FK Reading Ease
    57.2

    FK Grade Level
    Middle School
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