ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY ROYAL ASTRONOMICAL SOCIETY / SCIENCE PHOTO LIBRARY
Lick Observatory telescope tube under construction in October 1887. This is the eyepiece end. Known as the Great Lick Refractor, this 36-inch telescope was constructed by telescope builders Warner and Swasey. It is seen under construction here at their factory in Cleveland, Ohio, USA. The telescope was over 17 metres in length, and more than 40 tons in weight. The tube was installed at the Lick Observatory, Mount Hamilton, California, USA, and the lens added on 31 December 1887.
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