difference of longitude

The smaller angle at the pole or the shorter arc of a parallel between the meridians of two places, expressed as an angular measure. The same as change of longitude.
Difference of longitude.

Aviation dictionary. 2014.

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  • longitude — [ lɔ̃ʒityd ] n. f. • 1525; « longueur » 1314; lat. longitudo ♦ L une des coordonnées sphériques d un point de la surface terrestre; distance angulaire de ce point au méridien d origine mesurée en degrés. Île située par 60° de latitude sud et 40°… …   Encyclopédie Universelle

  • Longitude by chronometer — Longitude by Chronometer, known by mariners as Long by Chron , is an astronomical navigation method of calculating an observer s position on earth. The method gives the observer a position line on which the observer is situated. Usually the… …   Wikipedia

  • longitude — [län′jə to͞od΄, län′jətyo͞od΄; lôn′jə to͞od΄, lôn′jə tyo͞od΄] n. [ME < L longitudo < longus, LONG1] 1. length 2. distance east or west on the earth s surface, measured as an arc of the equator (in degrees up to 180° or by the difference in… …   English World dictionary

  • Longitude — For Dava Sobel s book about John Harrison, see Longitude (book). For the adaptation of Sobel s book, see Longitude (TV series). Map of Earth Longitude (λ) Lines of longitude appear vertical with varying curvature in this projection, but are… …   Wikipedia

  • Longitude — Les méridiens passent tous par les pôles La longitude est une coordonnée géographique représentée par une valeur angulaire, expression du positionnement est ouest d un point sur Terre (ou sur une autre planète). La longitude de référence sur… …   Wikipédia en Français

  • longitude — /ˈlɒŋgətjud / (say longguhtyoohd), /ˈlɒŋətjud/ (say longuhtyoohd), / tʃud/ (say choohd) noun 1. Geography angular distance east or west on the earth s surface, measured along the equator by the angle contained between the meridian of a particular …   Australian English dictionary

  • longitude — /lon ji toohd , tyoohd /, n. 1. Geog. angular distance east or west on the earth s surface, measured by the angle contained between the meridian of a particular place and some prime meridian, as that of Greenwich, England, and expressed either in …   Universalium

  • History of longitude — The history of longitude is a record of the effort, by navigators and scientists over several centuries, to discover a means of determining longitude. The measurement of longitude is important to both cartography and navigation. Historically, the …   Wikipedia

  • Mean longitude — In astrodynamics or celestial dynamics, mean longitude is the longitude at which an orbiting body could be found if its orbit were circular, and free of perturbations, and if its inclination were zero. Both the mean longitude and the true… …   Wikipedia

  • Changement en latitude, en longitude — ● Changement en latitude, en longitude différence entre la latitude, la longitude de départ et celle d arrivée …   Encyclopédie Universelle

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