periodic perturbations

periodic perturbations
периодические возмущения (орбит)

English-russian astronautics dictionary. - M.: Military Publishing house. . 1964.

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  • List of periodic comets — Periodic comets are defined for these purposes as those comets having orbital periods of less than 200 years (also known as short period comets ) or which have been observed during more than a single perihelion passage (e.g. 153P/Ikeya Zhang).… …   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

  • fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …   Universalium

  • Secular phenomena — In astronomy, secular phenomena (which repeat too slowly to be observed, if at all) are contrasted with phenomena observed to repeat periodically. In particular, astronomical ephemerides use secular to label long term perturbations in the motion… …   Wikipedia

  • New moon — For other uses, see New moon (disambiguation). The new moon phase In astronomical terminology, the new moon is the lunar phase that occurs when the Moon, in its monthly orbital motion around Earth, lies between Earth and the Sun, and is therefore …   Wikipedia

  • Lunar phase — Moon phase redirects here. For the manga and anime series, see Tsukuyomi: Moon Phase. Animation of the Moon as it cycles through its phases, as seen from the Northern Hemisphere. The apparent wobbling of the Moon is known as libration. The… …   Wikipedia

  • Comet — This article is about the astronomical object. For other uses, see Comet (disambiguation). Comet Hale– …   Wikipedia

  • comet — cometary /kom i ter ee/, cometic /keuh met ik/, cometical, adj. cometlike, adj. /kom it/, n. Astron. a celestial body moving about the sun, usually in a highly eccentric orbit, consisting of a central mass surrounded by an envelope of dust and… …   Universalium

  • Perturbation (astronomy) — Perturbation is a term used in astronomy in connection with descriptions of the complex motion of a massive body which is subject to appreciable gravitational effects from more than one other massive body.[1] Such complex motions of a body can be …   Wikipedia

  • Oort cloud — An artist s rendering of the Oort cloud and the Kuiper belt (inset). Sizes of individual objects have been exaggerated for visibility …   Wikipedia

  • Asteroid belt — For the album by Velvet Chain, see Asteroid Belt (album). The asteroid belt (shown in white) is located between the orbits of Mars and Jupiter. The asteroid belt is the region of the Solar System located roughly between the orbits of the planets… …   Wikipedia


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