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Zenith
Imaginary point directly above a particular location, on the imaginary celestial sphere / From Wikipedia, the free encyclopedia
For other uses, see Zenith (disambiguation). "Zenith angle" redirects here. For the novel, see The Zenith Angle.
The zenith (UK: /ˈzɛnɪθ/, US: /ˈziːnɪθ/)[1] is the imaginary point on the celestial sphere directly "above" a particular location. "Above" means in the vertical direction (plumb line) opposite to the gravity direction at that location (nadir). The zenith is the "highest" point on the celestial sphere.
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