secular variations
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Secular variations of the planetary orbits — The Secular Variations of the Planetary Orbits (French: Variations Séculaires des Orbites Planétaires, abbreviated as VSOP) is a semi analytic theory describing the long term changes (secular variation) in the orbits of the planets Mercury to… … Wikipedia
Secular variation — The secular variation (or secular trend) of a time series is its long term non periodic variation, as opposed to its periodic variation. Of course, whether something is perceived as a secular variation or not depends on the available timescale:… … Wikipedia
Variations séculaires des orbites planétaires — Les Variations Séculaires des Orbites Planétaires est un concept décrivant les changements à long terme présumés (variation séculaire) de l’orbite de toutes les planètes du système solaire (de Mercure à Neptune). Plusieurs tentatives ont été… … Wikipédia en Français
Hexachordum Apollinis — (PWC 193 ndash;8, T. 211 ndash;6, PC 131 ndash;6, POP 1 ndash;6) is a collection of keyboard music by Johann Pachelbel, published in 1699. It comprises six arias with variations, on original themes, and is generally regarded as one of the… … Wikipedia
Sweelinck, Jan Pieterszoon — born April 1562, Amsterdam, Neth. died Oct. 16, 1621, Amsterdam Dutch composer. As organist at Amsterdam s Old Church from с 1580, he became famous for his improvisations. Aside from occasional trips to other cities for organ consultation, he… … Universalium
Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration … Wikipedia
Frame-dragging — Albert Einstein s theory of general relativity predicts that rotating bodies drag spacetime around themselves in a phenomenon referred to as frame dragging. The rotational frame dragging effect was first derived from the theory of general… … Wikipedia
Post-glacial rebound — A model of present day mass change due to post glacial rebound and the reloading of the ocean basins with seawater. Blue and purple areas indicate rising due to the removal of the ice sheets. Yellow and red areas indicate falling as mantle… … Wikipedia
Equation of time — The equation of time is the difference over the course of a year between time as read from a sundial and time as read from a clock, measured in an ideal situation (ie. in a location at the centre of a time zone, and which does not use daylight… … Wikipedia
Effet Lense-Thirring — En astrophysique, l effet Lense Thirring (aussi appelé frame dragging en anglais) est un phénomène prédit par la théorie de la relativité générale d Albert Einstein et qui serait détectable autour d objets en rotation très rapide et/ou dans un… … Wikipédia en Français
Effet lense-thirring — En astrophysique, l effet Lense Thirring (aussi appelé frame dragging en anglais) est un phénomène prédit par la théorie de la relativité générale d Albert Einstein et qui serait détectable autour d objets en rotation très rapide et/ou dans un… … Wikipédia en Français
