Definition of telescope

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Telescope (n.) An optical instrument used in viewing distant objects, as the heavenly bodies..

Lern More About Telescope

Comet- Seeker :: Comet- seeker (n.) A telescope of low power, having a large field of view, used for finding comets..
Diskless :: Diskless (a.) Having no disk; appearing as a point and not expanded into a disk, as the image of a faint star in a telescope..
Galaxy :: Galaxy (n.) The Milky Way; that luminous tract, or belt, which is seen at night stretching across the heavens, and which is composed of innumerable stars, so distant and blended as to be distinguishable only with the telescope. The term has recently been used for remote clusters of stars..
Reflector :: Reflector (n.) A reflecting telescope.
Diaphragm :: Diaphragm (n.) A plate with an opening, which is generally circular, used in instruments to cut off marginal portions of a beam of light, as at the focus of a telescope..
Refractor :: Refractor (n.) A refracting telescope, in which the image to be viewed is formed by the refraction of light in passing through a convex lens..
Micrometer :: Micrometer (n.) An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass..
Rille :: Rille (n.) One of certain narrow, crooked valleys seen, by aid of the telescope, on the surface of the moon..
Alidade :: Alidade (n.) The portion of a graduated instrument, as a quadrant or astrolabe, carrying the sights or telescope, and showing the degrees cut off on the arc of the instrument.
Binocle :: Binocle (n.) A dioptric telescope, fitted with two tubes joining, so as to enable a person to view an object with both eyes at once; a double-barreled field glass or an opera glass..
Following :: Following (a.) (In the field of a telescope) In the direction from which stars are apparently moving (in consequence of the earth's rotation); as, a small star, north following or south following. In the direction toward which stars appear to move is called preceding..
Telespectroscope :: Telespectroscope (n.) A spectroscope arranged to be attached to a telescope for observation of distant objects, as the sun or stars..
Telemeter :: Telemeter (n.) An instrument used for measuring the distance of an object from an observer; as, a telescope with a micrometer for measuring the apparent diameter of an object whose real dimensions are known..
Dynameter :: Dynameter (n.) An instrument for determining the magnifying power of telescopes, consisting usually of a doubleimage micrometer applied to the eye end of a telescope for measuring accurately the diameter of the image of the object glass there formed; which measurement, compared with the actual diameter of the glass, gives the magnifying power..
Trombone :: Trombone (n.) A powerful brass instrument of the trumpet kind, thought by some to be the ancient sackbut, consisting of a tube in three parts, bent twice upon itself and ending in a bell. The middle part, bent double, slips into the outer parts, as in a telescope, so that by change of the vibrating length any tone within the compass of the instrument (which may be bass or tenor or alto or even, in rare instances, soprano) is commanded. It is the only member of the family of wind instruments whos
Tripod :: Tripod (n.) A three-legged frame or stand, usually jointed at top, for supporting a theodolite, compass, telescope, camera, or other instrument..
Speculum :: Speculum (n.) A reflector of polished metal, especially one used in reflecting telescopes. See Speculum metal, below..
Definition :: Definition (n.) The act of defining; determination of the limits; as, a telescope accurate in definition..
Level :: Level (a.) Coinciding or parallel with the plane of the horizon; horizontal; as, the telescope is now level..
Erector :: Erector (n.) An attachment to a microscope, telescope, or other optical instrument, for making the image erect instead of inverted..
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