Nadir
From Conservapedia - Reading time: 1 min
The nadir is the point on Earth directly beneath a satellite, the opposite of zenith. Compare with subsatellite point.[1]
Etymology: Middle English, from Middle French, from Arabic naḍhīr opposite Date: 15th century.[2]
References[edit]
- ↑ NASA Earth Observatory glossary
- ↑ Nadir Merriam-Webster Online Dictionary
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