bn:00056707n
Noun Concept
Categories: Technical factors of astrology, Celestial coordinate system, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Orientation (geometry)
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nadir  nadir image  Nadir line  Nadirs  نَظِير
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The point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected WordNet 3.0
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The point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected WordNet 3.0 & Open English WordNet
The nadir is the direction pointing directly below a particular location; that is, it is one of two vertical directions at a specified location, orthogonal to a horizontal flat surface. Wikipedia
Low or downward point of reference. Wikipedia Disambiguation
The point of the celestial sphere, directly opposite the zenith. OmegaWiki
The point of the celestial sphere, directly opposite the zenith; inferior pole of the horizon; point of the celestial sphere directly under the place of observation. Wiktionary
WordNet 3.0 & Open English WordNet
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OmegaWiki
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