declination : Idioms & Phrases
Index
Angle of declination
- the angle made by a descending line, or plane, with a horizontal plane.
Webster 1913
Circle of declination
- a circle parallel to the celestial equator.
Webster 1913
Declination compass
(Physics) , a compass arranged for finding the declination of the magnetic needle.
Webster 1913
Declination of the compass ∨ needle
- the horizontal angle which the magnetic needle makes with the true north-and-south line.
Webster 1913
magnetic declination
-
noun the angle (at a particular location) between magnetic north and true north
magnetic variation; variation.
WordNet
Parallel of declination
(Astron.) , one of the small circles of the sphere, parallel to the equator.
Webster 1913
Refraction of latitude , longitude , declination , right ascension
- etc., the change in the apparent latitude, longitude, etc., of a heavenly body, due to the effect of atmospheric refraction.