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The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.
The telescope was donated to the Richland Astronomical Society in 1982 provided there would be a building to house it. The project was primarily financed by member Warren Rupp, after whom the observatory is named, and construction was completed in 1985. The completed telescope weighed over 7,500 pounds, and was an f/6.8 Newtonian.
The 69-inch (1.8 m) telescope at Perkins was immediately replaced with a 32-inch (810 mm) cassegrain reflector telescope. It was donated by Michael R. Schottland, an entrepreneur from Martinsville, Virginia. At that time it was the largest privately owned telescope in the United States. Currently it is one of the three largest telescopes in Ohio.
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Hooker Telescope Mount Wilson Obs. 100 inch 254 cm 1917 USA: McDonald Obs. 82 inch i.e. Otto Struve Telescope: 82 inch 208 cm 1939 USA: David Dunlap Observatory: 74 inch 188 cm 1935 Canada: Plaskett telescope Dominion Astrophysical Obs. 72 inch 182 cm 1918 Canada: 69-inch Perkins Telescope [10] Perkins Observatory: 69 inch 175 cm: 1931–1964 USA
Southport's native centennial celebration, online plant sale, First Friday Gallery Walk, and 6 concerts happening this week in Brunswick County.
The Merz refractor was the biggest telescope in the United States in the early 1840s. [11] In 1871, the Observatory came under the control of the University of Cincinnati and in 1873 it was transferred from Mt. Adams to Mt. Lookout in order to escape the smoke and dirt of the city, where it remains today. [12]
NASA's James Webb Space Telescope (JWST) has captured photos of one of the earliest supernovas ever seen, with features appearing like grains and knots found in a cut of wood. "Once upon a time ...