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Sunspot group (DI00445)
Photograph, Sacramento Peak Observatory
Photograph, 1950s Eclipses
Photograph, Coronascope II-alpha
Microdensitometer
Photograph, HAO Staff
Close-up of active region of the sun (DI00442)
Photograph, Installation of spectrograph
Photograph, New Guinea eclipse expedition
Photograph, Harvard coronagraph
Bolivian solar eclipse expedition, 1966 (DI02116)
Photograph, Climax Site
Photograph, HAO Picnic at Climax
Photograph, Construction on the Chalk Mountain Site
Photograph, Climax Site
Photograph, New Guinea eclipse expedition
Eclipse Expedition (DI00802)
Photograph, HAO staff with instrument
Photograph, New Guinea eclipse expedition
Photograph, HAO Staff

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