planetary motion
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Kepler's laws of planetary motion — In astronomy, Kepler s Laws of Planetary Motion are three mathematical laws that describe the motion of planets in the Solar System. German mathematician and astronomer Johannes Kepler (1571–1630) discovered them.Kepler studied the observations… … Wikipedia
Pittendreigh's Law of Planetary Motion — is a humorous theory developed by Maynard Pittendreigh, who published his theory in Sky and Telescope (February, 1996). The perception of time passing more quickly has nothing to do with the fact of one s aging process. It s the fault of the… … Wikipedia
Kepler's laws of planetary motion — ▪ astronomy in astronomy and classical physics, laws describing the motions of the planets in the solar system. They were derived by the German astronomer Johannes Kepler, whose analysis of the observations of the 16th century Danish… … Universalium
Kepler's law of planetary motion — noun (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler • Syn: ↑Kepler s law • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑law, ↑law of nature … Useful english dictionary
Motion (physics) — Motion involves change in position, such as in this perspective of rapidly leaving Yongsan Station In physics, motion is a change in position of an object with respect to time. Change in action is the result of an unbalanced force. Motion is… … Wikipedia
motion — 01. The [motion] of a moving car always makes me fall asleep when I m sitting in the back. 02. The little bunny stayed [motionless] in the tall grass until the hawk flew away. 03. Mae West once said that sex is an emotion in [motion]. 04.… … Grammatical examples in English
laws of planetary motion — kepler s laws … Useful english dictionary
Planetary objects proposed in religion, astrology, ufology and pseudoscience — This article is about non scientific hypothetical planetary objects. For scientifically accepted hypothetical planetary objects, see Hypothetical planet (disambiguation). For fictional planets, see Planets in science fiction. There are a number… … Wikipedia
Planetary mass — The four terrestrial planets in the Solar System, to scale. Note that Mars (to the far right) is about half the diameter of the Earth, but only one ninth of the mass … Wikipedia
Planetary aberration — Aberration Ab er*ra tion, n. [L. aberratio: cf. F. aberration. See {Aberrate}.] 1. The act of wandering; deviation, especially from truth or moral rectitude, from the natural state, or from a type. The aberration of youth. Hall. Aberrations from… … The Collaborative International Dictionary of English
Planetary precession — Precession Pre*ces sion, n. [L. praecedere, praecessum, to go before: cf. F. pr[ e]cession. See {Precede}.] The act of going before, or forward. [1913 Webster] {Lunisolar precession}. (Astron.) See under {Lunisolar}. {Planetary precession}, that… … The Collaborative International Dictionary of English
