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File:Pulkovo 30 inch refracting telescope.jpg

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Summary

Description
English: Refracting telescope, 76 cm (30 inch) aperture, installed at Pulkovo Observatory, near St. Petersberg, Russia in 1885. Its scale can be judged by the small human figures in the photo. Built by Repsold and Sons of Germany, it was one of the largest telescopes in the world at the time. Its focal length was 12.8 m (42 ft). During the Siege of Leningrad, 1944, the telescope was destroyed along with the rest of the observatory by German bombardment, but the valuable objective lens, cast by Alvan Clark & Sons, was saved.

Caption: "The new 30-inch refractor of the Pulkowa Observatory, constructed by Repsold and Sons, 1884, Hamburg, Germany"
Date
Source Retrieved May 28, 2014 from George Frederick Chambers 1890 A Handbook of Descriptive and Practical Astronomy, Vol 2: Instruments and Practical Astronomy, Clarendon Press, Oxford, plate 1, frontispiece on Google Books
Author Credited to Woodburytype, Oxford University Press
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current09:53, 28 May 2014Thumbnail for version as of 09:53, 28 May 20141,296 × 1,792 (256 KB)ChetvornoUser created page with UploadWizard

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