telescopes definition
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telescope telescope definition: The definition of a telescope is an optical instrument that makes far away objects look closer by using a special arrangement of lenses and mirrors. (noun) An optical instrument you use to look at the stars that makes the stars appe...
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ASTRONOMY FOR KIDS Quasars are extremely distant objects in our known universe. They are the furthest objects away from our galaxy that can be seen. Quasars are extremely bright masses of energy and light. The name quasar is actually short for quasi-stellar radio source or quasi-stellar object. Quasars are the brightest objects in our universe, although to see one through a telescope they do not look that bright at all. This is because quasars are so far away. They emit radio waves, x-rays and light waves.
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What Is Astronomy and Who Does It? Astronomy, derived from the Greek words for star law, is the scientific study of all objects beyond our world. It is also the process by which we seek to understand the physical laws and origins of our universe. Both professional and amateur astronomers have interests in understanding the objects in the universe, although at different levels.
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lens A piece of glass or plastic shaped so as to focus or spread parallel light rays that pass through it to form an image. b. A combination of two or more such lenses used to form an image, as in a camera or telescope. Also called compound lens.
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Astronomy Astronomy is a core class and subject taught at Hogwarts School of Witchcraft and Wizardry and Uagadou School of Magic. Astronomy is a branch of magic that studies stars and the movement of planets. It is a subject where the use of practical magic during lessons isn't necessary. Uagadou students are known to be skilled in Astronomy, implying the teaching that is provided at Uagadou is excellent.
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lens Noun. 1. lens-a transparent optical device used to converge or diverge transmitted light and to form images. lens system, lense. anastigmat-compound lens or lens system designed to be free of astigmatism and able to form approximately point images.. a doubly convex, transparent body in the eye, behind the pupil, that focuses incident light on the retina. 5. a body of rock or ore that is thick in the middle and thinner toward the edges, similar in shape to a biconvex lens.
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lens lens (lěnz) n. pl. lens·es. A ground or molded piece of glass, plastic, or other transparent material with opposite surfaces either or both of which are curved, by means of which light rays are refracted so that they converge or diverge to form an image.
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astronomer astronomer definition: The definition of an astronomer is a scientist who studies matter and objects in outer space. (noun) Someone who observes the stars and makes notes about their movements is an example of an astronomer. ...
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Equinox A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image.lthough reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large diameter objectives. Almost all of the major telescopes used in astronomy research are reflectors.
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- A reflecting telescope (also called a reflector) is a telescope that uses a single or combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century,by Isaac Newton, as an alternative to the refracting telescope which, at that time, was a design that suffered from severe chromatic aberration.
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Why do astronomers put telescopes in space? Why do astronomers send telescopes and probes into space? Telescopes: Many, many times more effective in space because they are not trying to see through earths atmosphere. This is a tremendous advantage.
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REFLECTING TELESCOPE Cassegrainian telescope, Gregorian telescope-a reflecting telescope that has a paraboloidal primary mirror and a hyperboloidal secondary mirror; light is brought to a focus through an aperture in the center of the primary mirror.eflecting telescope-optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece; Isaac Newton invented the reflecting telescope in 1668.
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Why do astronomers put telescopes in space? If you are in …space you do not have this distortion. The Hubble Telescope is a good example of space based telescopes. Scientists have put telescopes in space to avoid interference by the atmosphere. SOURCE: -Page 560 of Holt Science & Technology Earth Science -Chapter 18-Studying Space -Section 2- Telescopes -Optical Telescopes in Space.
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Astronomy Astronomy is the scientific study of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earth's atmosphere (such as the cosmic background radiation).
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Definitions &Translations Nebula (n.). (Astron.) A faint, cloudlike, self-luminous mass of matter situated beyond the solar system among the stars. The term was originally applied to any diffuse luminous region. Now, technically, it is applied to interstellar clouds of dust and gases (diffuse nebula).
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urea topical This helps the dead skin cells fall off and helps the skin keep more water in. Higher strengths of urea are used to treat corns, callous, and some nail problems (e.g., ingrown nails). Urea is also used to help remove dead tissue in some wounds to help wound healing.
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What is a Telescope? Today the word telescope can refer to a whole range of instruments operating in most regions of the electromagnetic spectrum, from the longest radio waves to the shortest gamma rays. They have been placed in the middle of deserts, the top of mountains, and even at the South Pole to better see the sky.
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- noun astronomy 1 a bright diffuse nebula that emits light as a result of ionization of its gas atoms by ultraviolet radiation as the orion nebula planetary nebulae and supernova remnants as the crab nebula british dictionary definitions for emission nebula expand
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- The troopers obeyed orders with a precision which immediately caused the burgher guard and the people to fall back, in a degree of confusion which excited the smile of the cavalry officer. View in context
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Astronomy Astronomy is a natural science. It is the study of everything outside the atmosphere of Earth. It studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae) and processes (such as supernovae explosions, gamma ray bursts, and cosmic microwave background radiation).
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Astronomy Astronomy is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution. Objects of interest include planets, moons, stars, galaxies, and comets; the phenomena include supernova explosions, gamma ray bursts, and cosmic microwave background radiation. More generally, all phenomena that originate outside Earth's atmosphere are within the purview of astronomy. A
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- lens. 1  a piece of transparent substance, usually glass, having two opposite surfaces either both curved or one curved and one plane, used in an optical device in changing the convergence of light rays, as for magnification, or in correcting defects of vision. 2  a combination of such pieces.
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microscope Definition of microscope. 1  1 : an optical instrument consisting of a lens or combination of lenses for making enlarged images of minute objects; especially : compound microscope. 2  2 : a non-optical instrument (as one using radiations other than light or using vibrations) for making enlarged images of minute objects an acoustic microscope.
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Ultraviolet telescope Ultraviolet telescope: Ultraviolet telescope, telescope used to examine the ultraviolet portion of the electromagnetic spectrum, between the portion seen as visible light and the portion occupied by X-rays. Ultraviolet radiation has wavelengths of about 400 nanometres (nm) on the visible-light side and about 10 nm on the X-ray side.
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Definitions &Translations Finderscope A Finderscope is a small auxiliary telescope mounted atop the main astronomical telescope and pointed in the same direction. The finderscope usually has a much smaller magnification than the main telescope can provide and therefore can see more of the sky.
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observatory Define observatory: a building or place given over to or equipped for observation of natural phenomena (as in astronomy);… — observatory in a sentence a building or place given over to or equipped for observation of natural phenomena (as in astronomy); also : an institution whose primary purpose…