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.
© MMXXIII Rich X Search. We shall prevail. All rights reserved. Rich X Search