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The Bresser GmbH product portfolio caters to both amateur and professional users, under several specialized brands. These include the Bresser Brand itself (telescopes, microscopes, binoculars, weather stations, and photo studio equipment), Explore Scientific (telescopes and astronomy accessories), National Geographic (optical and outdoor products like binoculars, [7] telescopes and microscopes ...
Astronomer George Ellery Hale, whose vision created Palomar Observatory, built the world's largest telescope four times in succession. [8] He published a 1928 article proposing what was to become the 200-inch Palomar reflector; it was an invitation to the American public to learn about how large telescopes could help answer questions relating to the fundamental nature of the universe.
The Giant Magellan Telescope (GMT) is a ground-based, extremely large telescope currently under construction at Las Campanas Observatory in Chile's Atacama Desert.With a primary mirror diameter of 25.4 meters, it is expected to be the largest Gregorian telescope ever built, observing in optical and mid-infrared wavelengths (320–25,000 nm). [1]
This is a list of large optical telescopes. For telescopes larger than 3 meters in aperture see List of largest optical reflecting telescopes . This list combines large or expensive reflecting telescopes from any era, as what constitutes famous reflector has changed over time.
The old Yerkes 24 inch (2 foot telescope) reflecting telescope, now in a museum Diagram of the Bruce astrograph A 12-inch refractor was moved to Yerkes from Kenwood Observatory in the 1890s. [ 13 ] Two other telescopes planned for the observatory in the 1890s were a 12-inch aperture refractor and a 24-inch reflecting telescope. [ 13 ]
National Geographic Channel: Release: 1 April 2008 ... Newton's reflector, Parsons' telescope, Hooker telescope, Hale Telescope and Bolshoi telescope. ...
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