#telescope__scope  a magnifier of images of distant objects
  supertype:  magnifier  a scientific instrument that magnifies an image
  part:  aperture  view_finder  optical_prism
  subtype:  astronomical_telescope  any telescope designed to collect and record electromagnetic radiation from cosmic sources
     subtype:  optical_telescope__opticaltelescope  an astronomical telescope designed to collect and record light from cosmic sources
        subtype:  reflecting_telescope__reflector  optical telescope consisting of a large concave mirror that produces an image that is magnified by the eyepiece
           subtype:  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
           subtype:  coude_telescope__coudetelescope__coude_system__coudesystem  a reflecting telescope so constructed that the light is led to a plate holder or spectrograph
           subtype:  Herschelian_telescope__off-axis_reflector  a reflecting telescope with the mirror slightly tilted to throw the image to the side where it can be viewed
           subtype:  Maksutov_telescope  reflecting telescope in which the aberration of the concave mirror is reduced by a meniscus lens
           subtype:  Newtonian_telescope__Newtonian_reflector  reflecting telescope in which the image is viewed through an eyepiece perpendicular to main axis
           subtype:  Schmidt_telescope__Schmidt_camera  reflecting telescope that has plate that corrects for aberration so a wide area of sky can be photographed
        subtype:  refracting_telescope  optical telescope that has a large convex lens that produces an image that is viewed through the eyepiece
           subtype:  field_glass__fieldglas__glass__glas__spyglas  a small refracting telescope
           subtype:  Galilean_telescope  a type of refracting telescope that is no longer used in astronomy
     subtype:  radio_telescope__radiotelescope__radio_reflector__radioreflector  astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources
        subtype:  radio_interferometer__radiointerferometer  radio telescope that uses interference patterns from two antennas instead of a parabolic antenna
  subtype:  collimator.telescope  a small telescope attached to a large telescope to use in setting the line of the larger one
  subtype:  solar_telescope__solartelescope  a telescope designed to make observations of the sun
  subtype:  transit_instrument__transitinstrument  a telescope mounted on an axis running east and west and used to time the transit of a celestial body across the meridian

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