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Title: Halley's Comet; H. Knox-Shaw, Helwan Observatory, Egypt, 191 [Go to resource]
Description: Halley's Comet; H. Knox-Shaw, Helwan Observatory, Egypt, 1910, April 27d 14h 7m; 30-inch Reflector, Focal length, 135 in. Exposure, 5 min License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: comets
black-and-white transparencies
astrophotographsTemporal: 1910 Source: Science Museum Creator: Knox-Shaw, Harold, 1885-1970 Identifier: 1929-705 Go to resource More Like this...
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