The geography of the heavens, and class-book of astronomy: (1858)
Burritt, Elijah H. (Elijah Hinsdale), 1794-1838, Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 320
696. Mr. Rutherfords Telescope ? By whom made ? 667. Cincinnati refractor—where located? By whom purchased? Where? When? Cost? Size and focal dis«tance ? Comparative size ? DIFFERENT KINDS OF TELESCOPES. 319 THE GREAT CRAIG TELESCOPE, WANDSWORTH COMMON, NEAR LONDON. … 698. This is the largest refracting telescope ever constructedThe object-glass is two feet in diameter, with a focal distance of16 feet. The tube is of heavy sheet iron, and shaped somewhatlike a cigar. It is 13 feet in circumference in the largest place,and weighs about three tons. This telescope…
Constellations · Stars
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