100 inch mirror in its cell, approaching the lower end of the tube where it will be bolted tightly. For the Hooker 100-inch reflecting telescope, Mount Wilson Observatory. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Mirrors--Frames Hoisting machinery Reflecting telescopes Large astronomical telescopes Astronomical instruments Astronomical observatories Mount Wilson Observatory Mount Wilson (Calif.) Photographic prints. (gmgpc)
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