- equant
- изометрический, равновеликий
English-Russian dictionary of geology. 2011.
equant
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Equant — (or Punctum aequans ) is a mathematical concept developed by Claudius Ptolemy in the 2nd century AD to account for the observed motion of heavenly bodies.The equant point, indicated in the diagram by the • , is placed so that it is directly… … Wikipedia
ÉQUANT — Concept astronomique de l’ère précopernicienne, introduit vers 130 par Claude Ptolémée pour expliquer les variations périodiques d’éclat des planètes Mars et Jupiter. Déjà, pour rendre compte de l’inégalité des saisons, Ptolémée avait été amené à … Encyclopédie Universelle
Equant — E quant, n. [L. aequans, antis, p. pr. of aequare: cf. F. [ e]quant. See {Equate}.] (Ptolemaic Astron.) A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; called also {eccentric equator}.… … The Collaborative International Dictionary of English
Equant — Orange Business Services Logo de Orange Business Services Création 2006 Forme juridique marque commerciale uniquement … Wikipédia en Français
equant — /ˈikwənt/ (say eekwuhnt) noun Astronomy (in the Ptolemaic system) a point from which a line is drawn to a planet, halfway along which is the centre of the planet s deferent, the planet or the centre of the planet s epicycle being conceived to… …
equant — ˈēkwənt, ˌkwant adjective Etymology: Latin aequant , aequans present participle of aequare : of, being, or relating to a crystal having equal or nearly equal diameters in all directions equant grain equant habit … Useful english dictionary
equant — /ee kweuhnt, ee kwant/, adj. (of a crystal) having all axes of the same length (opposed to anisometric). [ < L aequant , s. of aequans, prp. of aequare; see EQUATE] * * * … Universalium
équant — (é kouan) s. m. Terme de l ancienne astronomie. Cercle dont le centre était celui des mouvements réguliers. ÉTYMOLOGIE Lat. aequans, qui égale … Dictionnaire de la Langue Française d'Émile Littré
equant — [ i:kwənt] noun Astronomy, historical (in the Ptolemaic system) an imaginary circle that reconciles the planetary movements with the hypothesis of uniform circular motion. Origin C16: from L. aequant , aequare make equal … English new terms dictionary
eccentric equator — Equant E quant, n. [L. aequans, antis, p. pr. of aequare: cf. F. [ e]quant. See {Equate}.] (Ptolemaic Astron.) A circle around whose circumference a planet or the center of ann epicycle was conceived to move uniformly; called also {eccentric… … The Collaborative International Dictionary of English
Astronomie arabe — Miniature ottomane de l étude de la lune et des étoiles XVIIe siècle Dans l’histoire de l astronomie, l’astronomie arabe renvoie aux découvertes astronomiques accomplies par la civilisation islamique, particulièrement au cours de l’Âge d or… … Wikipédia en Français
