Hooker 100- inch telescope side view with tube nearly vertical, dome shutter open. Mount Wilson Observatory. Photograph taken inside the observatory dome. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Reflecting telescopes Large astronomical telescopes Cassegrainian telescopes Astronomical instruments Astronomical observatories Observatory domes Interiors Mount Wilson Observatory Mount Wilson (Calif.) Photographic prints. (gmgpc)
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