Declination (disambiguation) — Declination can refer to: Declination, coordinate used in astronomy The noun form of the verb Decline Magnetic declination, angle that must be added or subtracted in the use of compass for geography Grid declination, angle between the compass… … 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 — The angle from true (or grid) north to magnetic north for a given time and place [25] … Lexicon of Cave and Karst Terminology
Magnetic 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… … Wikipedia
Constellation — This article is about the star grouping. For other uses, see Constellation (disambiguation). The constellation Orion is one of the most recognizable in the night sky. In modern astronomy, a constellation is an internationally defined area of the… … Wikipedia
Song Dynasty — This article is about the Northern and Southern Song Dynasties. For the Southern Dynasty, see Liu Song Dynasty. Song 宋 ← … Wikipedia
Feng shui — Chinese pic=Fengshui Compass.jpg picsize=250px picc Luopan Compass t= s= kanji= hiragana=ふうすい revhep=fūsui kunrei=hûsui p=fēngshuǐ hanja= hangul= rr=pungsu mr=p ungsu vie=Phong thủy tgl=pungsoy tha=ฮวงจุ้ย ( Huang Jui ) j= fung1 seoi2… … Wikipedia
navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… … Universalium
Dynastie Song/Traduction à faire — Modèle:Otheruses Sommaire 1 0 2 Histoire de la dynastie Song 2.1 Les Song du Nord 2.2 Les Song du Sud … Wikipédia en Français
magnetic survey — ▪ geophysics one of the tools used by the exploration geophysicist in his search for mineral bearing ore bodies or even oil bearing sedimentary structures. The essential feature is the measurement of the magnetic field intensity and… … Universalium