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The amateur astronomy hobby contains words, labels, and technical terms that may seem be a little confusing for both beginners and the more experienced hobbyists. Astronomy is the science that looks up: at stars, at other planets, at solar systems, at galaxies, and at everything else in the universe. See more. The universe is a large place full of wondrous and unimaginable things. Cluster Method.... Closed Universe (a) Any model of the Universe in which the gravity of the matter content can reverse the expansion and cause a collapse. A galaxy is a vast island of stars in an ocean of space. astronomy meaning: 1. the scientific study of the universe and of objects that exist naturally in space, such as the…. Closed Universe A model universe in which the average density is great enough to stop the expansion and make the universe contract. (b) A standard universe with a spherical three-dimensional spatial geometry. Universe definition is - the whole body of things and phenomena observed or postulated : cosmos: such as. astronomy (ă-stron -ŏ-mee) The observational and theoretical study of celestial bodies, of the intervening regions of space, and of the Universe as a whole.Astronomy is one of the oldest sciences and has developed in step with advances in instrumentation and other technology and with advances in physics, chemistry, and mathematics. Astrophysics is the science of physical processes in the cosmos. Universe definition, the totality of known or supposed objects and phenomena throughout space; the cosmos; macrocosm. 3 people chose this as the best definition of astronomy: The definition of astrono... See the dictionary meaning, pronunciation, and sentence examples. Cosmology by definition is the branch of astronomy involving the origin and evolution of the universe, from the Big Bang to the future of the cosmos. Astronomy (from the Greek astron (ἄστρον) meaning "star" and nomos (nόμος) meaning "law") is the scientific study of celestial bodies such as stars, planets, comets, and galaxies . Learn more. The objects studied include stars, galaxies, planets, moons, asteroids, comets and nebulae.Phenomena outside the Earth's atmosphere are also studied. Galaxies are typically separated from one another by huge distances measured in millions of … How to use universe in a sentence.

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