In astronomy, the nadir is a point "below" a particular location. "Below" means in the same direction of gravity at that location. The nadir is the opposite of the zenith. The nadir is not a real point. It is used as a reference for the location of other things.
Related pages[change | change source]
References[change | change source]
- Glickman, Todd S. (2000). Glossary of meteorology. American Meteorological Society.
- McIntosh, D. H. (1972). Meteorological Glossary (5th ed.).
- Picoche, Jacqueline (2002). Dictionnaire étymologique du français. Paris: Le Robert.