Declination
51declination axis — noun : the axis of rotation that is at right angles to the polar axis of an equatorial mounting and that permits pointing the telescope to celestial objects of different declinations …
52declination compass — noun : declinometer …
53Magnetic declination — Example of magnetic declination showing a compass needle with a positive (or easterly ) variation from geographic north. Magnetic declination is the angle between magnetic north (the direction the north end of a compass needle points) and true… …
54magnetic declination — The angle between the magnetic and geographical meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. In nautical and aeronautical navigation, the term magnetic variation is used… …
55magnetic declination — noun The angle between the magnetic and geographical meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. In nautical and aeronautical navigation, the term magnetic variation is… …
56Circle of declination — Circle Cir cle (s[ e]r k l), n. [OE. cercle, F. cercle, fr. L. circulus (Whence also AS. circul), dim. of circus circle, akin to Gr. kri kos, ki rkos, circle, ring. Cf. {Circus}, {Circum }.] [1913 Webster] 1. A plane figure, bounded by a single… …
57magnetic declination — n. The angle (at a particular location) between magnetic north and true north; called also {magnetic variation}. [WordNet 1.5] …
58Grid declination — is the angle between compass north and the north direction defined by map coordinate grid. One map can sometimes have two coordinate grids, consequently there is a grid declination for each of these.The angle between the north direction defined… …
59magnetic declination — or magnetic deviation n. DECLINATION (sense 3) …
60Parallel of declination — Parallel Par al*lel, n. 1. A line which, throughout its whole extent, is equidistant from another line; a parallel line, a parallel plane, etc. [1913 Webster] Who made the spider parallels design, Sure as De Moivre, without rule or line ? Pope.… …
