semimajor
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semimajor axis — [sem′imā′jər] n. Astron. one half of the longer axis of an elliptical orbit … English World dictionary
semimajor — semi·major … English syllables
semimajor axis — noun Date: 1818 one half of the major axis of an ellipse (as that formed by the orbit of a planet) … New Collegiate Dictionary
semimajor axis — /sem ee may jeuhr, sem uy , sem ee , sem uy / 1. Geom. one half the major axis of an ellipse. 2. Astron. one half the major axis of the ellipse that one celestial body describes around another, as a planet around the sun or a satellite around a… … Universalium
semimajor axis — noun a) Half of the major axis of a circle or ellipse. b) Half of the distances between the two branches of a hyperbola … Wiktionary
semimajor axis — sem′i•ma′jor ax′is [[t]ˈsɛm iˈmeɪ dʒər, ˈsɛm aɪ , ˌsɛm i , ˌsɛm aɪ [/t]] n. 1) math. one half the major axis of an ellipse 2) astron. one half the major axis of the ellipse that one celestial body describes around another, equivalent to the mean… … From formal English to slang
semimajor axis — noun one half the major axis of an ellipse; the distance from the center of an ellipse to one end • Hypernyms: ↑axis • Part Holonyms: ↑major axis … Useful english dictionary
geoid — geoidal, adj. /jee oyd/, n. 1. an imaginary surface that coincides with mean sea level in the ocean and its extension through the continents. 2. the geometric figure formed by this surface, an ellipsoid flattened at the poles. [1880 85; < Gk… … Universalium
55 Cancri — Starbox begin name = 55 CancriStarbox observe 2s epoch = J2000.0 constell = Cancer component1 = 55 Cancri A ra1 = RA|08|52|35.8 dec1 = DEC|+28|19|51 appmag v1 = 5.95 component2 = 55 Cancri B ra2 = RA|08|52|40.9 dec2 = DEC|+28|19|59 appmag v2 = 13 … Wikipedia
celestial mechanics — the branch of astronomy that deals with the application of the laws of dynamics and Newton s law of gravitation to the motions of heavenly bodies. [1815 25] * * * Branch of astronomy that deals with the mathematical theory of the motions of… … Universalium
