declination chart

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• 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

• magnetic chart — noun : a chart showing the magnetic declination, inclination, or intensity over a given geographical area * * * Navig. a chart showing the magnetic properties of a portion of the earth s surface, as dip, variation, and intensity …   Useful english dictionary

• List of selected stars for navigation — The selected stars for navigation are often used for sextant observations. Fifty eight selected navigational stars are given a special status in the field of celestial navigation. Of the approximately 6,000 stars visible to the naked eye under… …   Wikipedia

• Planisphere — For the tetralogy of songs by Justice, see Justice discography. A plastic planisphere. A planisphere is a star chart analog computing instrument in the form of two adjustable disks that rotate on a common pivot. It can be adjusted to display the… …   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

• Emery Molyneux — One of Molyneux s celestial globes, which is displayed in Middle Temple Library – from the frontispiece of the Hakluyt Society s 1889 reprint of A Learned Treatise of Globes, both Cœlestiall and Terrestriall, one of the English editions of Robert …   Wikipedia

• Emery Molyneux — Emery Molyneux …   Wikipédia en Français

• Edward Wright (mathematician) — For the 20th century mathematician, see Edward Maitland Wright. Edward Wright Title page of the first edition of Wright s Certaine Errors in Navigation (1599) …   Wikipedia

• astronomical map — Introduction       any cartographic representation of the stars, galaxies, or surfaces of the planets and the Moon. Modern maps of this kind are based on a coordinate system analagous to geographic latitude and longitude. In most cases, modern… …   Universalium

• Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …   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