| nadir |
That point on the celestial sphere directly opposite the zenith and directly below the observer. The lowest point.
출처: www.souledout.org/nightsky/nsglossary.html
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| NAD |
There are two North American Datums: North American Datum of 1927 (NAD 27) and North American Datum of 1983 (NAD 83). Both are geodetic reference systems, but each is based on different measurements. NAD 27 incorporated all horizontal geodetic surveys completed up to 1927. NAD 83 updated NAD 27 with current measurements using radio astronomy and satellite observations. NAD 83 positions are consistent with satellite location systems (see GPS, Datum, Horizontal Datum).
출처: geoapp2.gov.mb.ca/website/MAFRI/Glossary3.html
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| NAD+ |
There are two North American Datums: North American Datum of 1927 (NAD 27) and North American Datum of 1983 (NAD 83). Both are geodetic reference systems, but each is based on different measurements. NAD 27 incorporated all horizontal geodetic surveys completed up to 1927. NAD 83 updated NAD 27 with current measurements using radio astronomy and satellite observations. NAD 83 positions are consistent with satellite location systems (see GPS, Datum, Horizontal Datum).
출처: geoapp2.gov.mb.ca/website/MAFRI/Glossary3.html
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| nadir |
Zero angle of light perpendicular to the lamps face and bisecting the beam angle. If a lamp were placed in a typical recessed can in a level ceiling, Nadir would be a vertical line perpendicular to the floor, ceiling, and lamp face.
출처: www.lightcalc.com/glossary.html
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| nadir |
Also known as Imum Coeli, "lowest part of the heavens", abbreviated in charts as IC The Nadir marks the cusp of the Fourth house and is the point in a birth/natal chart directly opposite the Midheaven. It represents a person's beginnings, parents, home life, and what he or she inherits from previous generations.
출처: www.eluminay.com/astrologyterms2.htm
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