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abstraction > mathematical concept > geometrical object > point > coordinate > local coordinate > east point
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east point comparison table
Subject has azimuth is an instance of is a kind of has elevation has definition
local coordinate  coordinate  
east point90local coordinate 0The point on the celestial horizon 90° clockwise from the north point. At the equinoxes the Sun rises in the east point.

Next local coordinatenadir    Uplocal coordinate    Previous local coordinatezenith