+Nadir is the point directly below an observer, opposite the [Zenith](/wiki/zenith). It signifies the lowest point, whether in the celestial sphere or as a metaphorical [Low Point](/wiki/low_point) in a journey.
+## See also
+- [Zenith](/wiki/zenith)
+- [Altitude](/wiki/altitude)
+- [Horizon](/wiki/horizon)
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