The Large Refractors Of The World
Description
This section is from the book "Scientific American Reference Book. A Manual for the Office, Household and Shop", by Albert A. Hopkins, A. Russell Bond. Also available from Amazon: Scientific American Reference Book.
The Large Refractors Of The World
Institution. | Aperture in Inches. | Focal Length in Feet. | Date of Erection. |
Yerkes Observatory, Wisconsin, U. S. A....................... | 40.0 | 62.0 | 1897 |
Lick Observatory, California, U. S. A................. | 36.0 | 57.8 | 1888 |
Lick Observatory, California, U. S. A................... | 33.0 | 49.2 | |
National Observatory, Meudon......................... | 32.5 | 53.0 | 1891 |
Astrophysical Observatory, Potsdam.................... | 31.1 | 39.4 | |
Bischoffsheim Observatory, Nice.................... | 30.3 | 52.6 | 1889 |
Imperial Observatory, Poulkova..................... | 30.0 | 42.0 | 1882 |
National Observatory, Paris.................. | 28.9 | ||
Royal Observatory, Greenwich.................... | 28.0 | 28.0 | 1894 |
Imperial Observatory, Vienna..................... | 27.0 | 34.0 | 1894 |
Royal Observatory, Greenwich................... | 26.0 | 26.0 | 1897 |
Naval Observatory, Washington......................... | 26.0 | 32.5 | 1871 |
Leander McCormick Observatory, Virginia, U. S. A................. | 26.0 | 32.5 | 1874 |
Cambridge University Observatory.................. | 25.0 | 1868 | |
National University, Meudon................. | 24.4 | 52.2 | 1891 |
Harvard College, Cambridge, U. S. A........................ | 24.0 | 11.3 | 1894 |
Royal Observatory, Cape of Good Hope.................... | 24.0 | 22.6 | 1897 |
Lowell Observatory, Mexico................... | 24.0 | 31.0 | 1895 |
National Observatory, Paris......................... | 23.6 | 59.0 | 1889 |
Halstead Observatory, Princeton, U. S. A...................... | 23.0 | 32.0 | 1881 |
Etna.......................... | 21.8 | ||
Buckingham Observatory........................... | 21.2 | ||
M. Porro, Private Observatory; Italy.................. | 20.5 | ||
Chamberlin Observatory, Colorado, U. S. A....................... | 20.0 | 28.0 | 1891 |
Manila Observatory, Philippines..................... | 20.0 | 1892 | |
Astrophysical Observatory, Potsdam........................ | 19.7 | 41.2 | |
Imperial Observatory, Strassburg..................... | 19.1 | 23.0 | 1880 |
Milan Observatory, Italy........................ | 19.1 | 23.0 | |
North-Western Observatory. Illinois, U. S. A........................ | 18.5 | 27.0 | |
Dearborn Observatory........................ | 18.5 | ||
National Observatory, La Plata..................... | 18.1 | 29.5 | 1890 |
Lowell Observatory, Mexico....................... | 18.0 | 26.3 | 1894 |
Flower Observatory, Philadelphia, U. S. A................... | 18.0 | 1896 | |
Vander Zee Observatory..................... | 18.0 | ||
Royal Observatory, Cape of Good Hope......................... | 18.0 | 22.6 | 1897 |
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