perturbed motion
51Osculating orbit — In astronomy, and in particular in astrodynamics, the osculating orbit of an object in space (at a given moment of time) is the gravitational Kepler orbit (i.e. ellipse or other conic) that it would have about its central body (corresponding to… …
52Plato: metaphysics and epistemology — Robert Heinaman METAPHYSICS The Theory of Forms Generality is the problematic feature of the world that led to the development of Plato’s Theory of Forms and the epistemological views associated with it.1 This pervasive fact of generality appears …
53Kuiper belt — Known objects in the Kuiper belt, derived from data from the Minor Planet Center. Obje …
54Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) …
55Man with a Movie Camera — For other uses, see Man with a Movie Camera (disambiguation). Man with a Movie Camera Original film poster Directed by Dziga Vertov …
56Beta Pictoris — Starbox begin name=Beta PictorisStarbox image caption=Map of the Pictor constellation showing the position of Beta Pictoris.Starbox observe epoch=J2000 ra=05h 47m 17.1scite web|url=http://simbad.u strasbg.fr/simbad/sim id?protocol=html… …
57Reaction (physics) — In classical mechanics, Newton s third law states that forces occur in pairs, one called the Action and the other the Reaction ( actio et reactio in Latin). Both forces are equal in magnitude and opposite in direction. The distinction between… …
58Formation and evolution of the Solar System — Artist s conception of a protoplanetary disk The formation and evolution of the Solar System is estimated to have begun 4.568 billion years ago with the gravitational collapse of a small part of a giant molecular cloud …
59galaxy — /gal euhk see/, n., pl. galaxies. 1. Astron. a. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. b. (usually cap.) See Milky Way. 2. any large and brilliant or impressive… …
60er-3 : or- : r- — er 3 : or : r English meaning: to move *stir, animate, fight, struggle, rise; to spring up, be born Deutsche Übersetzung: ‘sich in Bewegung setzen, erregen (also seelisch, ärgern, stir, tease, irritate); in die Höhe bringen (Erhebung …
