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abstraction > mathematical concept > geometrical object > point > coordinate > local coordinate > zenith |
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zenith | ||||
subject | fact |
zenith | has antonym nadir | ![]() |
has elevation 90 | ![]() | |
has azimuth 0 | ![]() | |
is opposite of nadir | ![]() | |
has definition The point in the sky directly overhead. | ![]() | |
has definition The point on the celestial sphere directly above the observer's head - i.e., opposite to the direction of gravity (nadir). | ![]() | |
is an instance of local coordinate | ![]() | |
local coordinate | has component local coordinate component | ![]() |
has coordinate origin observer location on the surface of the Earth | ![]() | |
point | has dimensions 0 | ![]() |