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abstraction > mathematical concept > geometrical object > point > coordinate > local coordinate > nadir |
nadir comparison table |
Subject | has definition | is opposite of | has synonym | is a kind of | has azimuth | is an instance of | has antonym | has elevation |
---|---|---|---|---|---|---|---|---|
local coordinate | coordinate | |||||||
nadir | The point on the celestial sphere diametrically opposite to the zenith in the direction of gravity. | zenith | downward | 0 | local coordinate | zenith | -90 |
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