angle sextant

См. также в других словарях:

• sextant — [ sɛkstɑ̃ ] n. m. • 1639; lat. sc. sextans (1602), proprt « sixième » ♦ Astron., mar. Instrument composé d un miroir tournant et d un sixième de cercle gradué, permettant de mesurer la distance angulaire d un astre avec l horizon. Faire le point… …   Encyclopédie Universelle

• Sextant — Pour les articles homonymes, voir Sextant (homonymie). Un sextant. Un sextant est un instrument de navigation à réflexion servant à mesurer la distance angulaire entre deux points aussi bien verticalement qu h …   Wikipédia en Français

• Sextant — This article is about the sextant as used for navigation. For the astronomer s sextant, see Sextant (astronomical). : For the history and development of the sextant see Reflecting instruments A sextant is an instrument generally used to measure… …   Wikipedia

• Sextant (astronomical) — This article is about the Sextant as used for astrometry. For the navigator s sextant, see Sextant . Sextants for astronomical observations were used primarily for measuring the positions of stars. They are little used today, having been replaced …   Wikipedia

• sextant — /sek steuhnt/, n. 1. an astronomical instrument used to determine latitude and longitude at sea by measuring angular distances, esp. the altitudes of sun, moon, and stars. 2. (cap.) Astron. the constellation Sextans. [1590 1600; < L sextant (s.… …   Universalium

• Sextant Bris — Un mini sextant Bris. Le sextant Bris est un instrument de navigation créé par un inventeur et navigateur suédois Sven Yrvind. Malgré son nom, ce n est pas tout à fait un sextant mais un petit et peu coûteux dispositif de mesure des angles qui… …   Wikipédia en Français

• sextant — [17] A sextant is etymologically an instrument based on a ‘sixth’ of a circle. Sextants measure off the angle between the horizon and a celestial body on a graduated scale that is marked on an arc equal to one sixth of a circle. They were first… …   The Hutchinson dictionary of word origins

• sextant — [17] A sextant is etymologically an instrument based on a ‘sixth’ of a circle. Sextants measure off the angle between the horizon and a celestial body on a graduated scale that is marked on an arc equal to one sixth of a circle. They were first… …   Word origins

• sextant — noun a) A navigational device for deriving angular distances between objects so as to determine latitude and longitude. For several days things went along in about the same course. I took our position every morning with my crude sextant; but the… …   Wiktionary

• sextant altitude — The altitude of a celestial body as measured by a sextant. It is the angle measured in a vertical plane between an artificial or sea horizon and a celestial body, without application of any corrections …   Aviation dictionary

• Bris sextant — The Bris sextant (pronEng|bɹiːs) is not a sextant proper, but is a small, inexpensive, angle measuring device that can be used for navigation.Sven Yrvind (Lundin) developed his Bris sextant as part of his quest for low cost, low technology… …   Wikipedia