true declination

См. также в других словарях:

• Declination — Dec li*na tion, n. [L. declinatio a bending aside, an avoiding: cf. F. d[ e]clination a decadence. See {Declension}.] 1. The act or state of bending downward; inclination; as, declination of the head. [1913 Webster] 2. The act or state of falling …   The Collaborative International Dictionary of English

• Declination compass — Declination Dec li*na tion, n. [L. declinatio a bending aside, an avoiding: cf. F. d[ e]clination a decadence. See {Declension}.] 1. The act or state of bending downward; inclination; as, declination of the head. [1913 Webster] 2. The act or… …   The Collaborative International Dictionary of English

• Declination of the compass — Declination Dec li*na tion, n. [L. declinatio a bending aside, an avoiding: cf. F. d[ e]clination a decadence. See {Declension}.] 1. The act or state of bending downward; inclination; as, declination of the head. [1913 Webster] 2. The act or… …   The Collaborative International Dictionary of English

• Declination of the needle — Declination Dec li*na tion, n. [L. declinatio a bending aside, an avoiding: cf. F. d[ e]clination a decadence. See {Declension}.] 1. The act or state of bending downward; inclination; as, declination of the head. [1913 Webster] 2. The act or… …   The Collaborative International Dictionary of English

• declination — ► NOUN 1) Astronomy the angular distance of a point north or south of the celestial equator. 2) the angular deviation of a compass needle from true north …   English terms dictionary

• Declination — For other uses, see Declination (disambiguation). In astronomy, declination (abbrev. dec or δ) is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is… …   Wikipedia

• declination — i. The angular difference in direction between magnetic north and true north, or between grid north and true north; hence, magnetic declination and grid declination. ii. The angular distance of a celestial body from the celestial equator along… …   Aviation dictionary

• declination of the needle — Variation Va ri*a tion, n. [OE. variatioun, F. variation, L. variatio. See {Vary}.] [1913 Webster] 1. The act of varying; a partial change in the form, position, state, or qualities of a thing; modification; alternation; mutation; diversity;… …   The Collaborative International Dictionary of English

• declination — Refraction Re*frac tion (r?*fr?k sh?n), n. [F. r[ e]fraction.] 1. The act of refracting, or the state of being refracted. [1913 Webster] 2. The change in the direction of ray of light, heat, or the like, when it enters obliquely a medium of a… …   The Collaborative International Dictionary of English

• declination — /dɛkləˈneɪʃən/ (say dekluh nayshuhn) noun 1. Astronomy the angular distance of a heavenly body from the celestial equator, measured on a great circle passing through the celestial pole and the body. 2. Also, magnetic declination, magnetic… …  

• declination —   the latitude where, on any particular day, the sun is 90˚ above the horizon at solar noon i.e. when the sun is aligned between true north and true south …   Geography glossary