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 Date: 2009-09-24 13:35:39Astronomy Altazimuth mount Newtonian telescope Astrophotography Telescope Equatorial mount Camera lens Eyepiece Refracting telescope Telescopes Observational astronomy Telescope types |
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Optical Tube Optical tube is the main component of an astronomical telescope as it contains the lens and mirror that collects light from celestial objects and the eyepiece lens that magnifies the image. The factors that