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Books Bücher 1 - 9 von 9 in Huggius a seven-foot Newtonian telescope made by the late Mr. Lassell. No secondary...
" Huggius a seven-foot Newtonian telescope made by the late Mr. Lassell. No secondary reflector is used, nor is the mirror tilted, but the open end of the tube is fitted with a mahogany cover in which are two circular holes three and a quarter inches in... "
The Observatory - Seite 342
1883
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The Popular Science Monthly, Band 27

1885
...strapped on to the refractor of the equatorial in my observatory, and carried with it by the clock-motion. The performance of the apparatus is very satisfactory. The photographs show the sun's image sharply denned ; even small spots are seen. When the sky is free from clouds, but presents a whity appearance...
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The American Journal of Science

1884
...is firmly strapped on to the reflector of the equatorial, and carried with it by the clock motion. The performance of the apparatus is very satisfactory....The photographs show the sun's image sharply defined ; even small spots are seen. When the sky is free from clouds, but presenting a whity appearance from...
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Annual Report of the Board of Regents of the Smithsonian Institution

1885
...nor is the mirror tilted, but th'e open end of the tube is fitted with a mahogany cover in ^vvhich are two circular holes three and a quarter inches...satisfactory. The photographs show the sun's image sharp!y defined, but it is only when the sky becomes clear and blue in color that any coronal appearances...
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The Popular Science Monthly, Band 27

1885
...strapped on to the refractor of the equatorial in my observatory, and carried with it by the clock-motion. The performance of the apparatus is very satisfactory....The photographs show the sun's image sharply defined ; even small spots are seen. When the sky is free from clouds, but presents a whity api>earance from...
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Proceedings, Band 11

Royal Institution of Great Britain - 1887
...strapped on to the refractor of tho equatorial in my observatory, and carried with it by the clock motion. The performance of the apparatus is very satisfactory....The photographs show the sun's image sharply defined ; even small spots are seen. When the sky is free from clouds, but presents a whity appearance from...
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Report of the Board of Regents

Smithsonian Institution. Board of Regents - 1885
...photography. The photographs referred to in his first paper read before the Eoyal Society, 1882, December 21, were obtained with a Newtonian reflector by Short....satisfactory. The photographs show the sun's image sharp'y defined, but it is only when the sky becomes clear and blue in color that any coronal appearances...
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Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1885
...21, were obtained with a Newtonian reflector by Short. Since then Miss Lassell has lent Dr. Huggius a seven-foot Newtonian telescope made by the late...satisfactory. The photographs show the sun's image sharp'y defined, but it is only when the sky becomes clear and blue in color that any coronal appearances...
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Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1885
...21, were obtained with a Newtonian reflector by Short. Since then Miss Lassell has lent Dr. Hnggins a seven-foot Newtonian telescope made by the late...it is only when the sky becomes clear and blue in. color that any coronal appearances present themselves. In Dr. Huggius's earlier work he employed absorbing...
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Report of the Board of Regents

Smithsonian Institution. Board of Regents - 1885
...by the late Mr. Lassell. No secondary reflector is used, nor is the mirror tilted, but the open eud of the tube is fitted with a mahogany cover in which...apparatus is very satisfactory. The photographs show the suq's image sharp'y defined, but it is only when the sky becomes clear and blue in color that any coronal...
Vollansicht - Über dieses Buch




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