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HAO Eclipse Expeditions: Canary Islands (1959) and New Guinea (1962)
Hollow Square talk: Moon Rocks and Their Secrets
Solar eclipse in 1988 (DI00281)
Solar eclipse in 1988 (DI00280), Photo by Richard Fisher
Microdensitometer
Coronascope II
Coronascope II
Sacramento Peak Prominence Film
Coronascope II
Hollow Square talk: HAO's 1970 Eclipse Expedition -- or, Six Weeks on the Mountain of Eternal Clouds
Eclipse in 1970, Mexico (DI00448)
Jim Axtell and Gerard Wlerick at K-Coronameter (Mark I)
Coronagraph at Climax Observatory - Large Spar
Large Spar at Climax Observatory
Coronascope II
Coronascope II
Solar Flares and Other Chromospheric Phenomena
Coronal Activity and Magnetic Fields of the Sun, Extended Version
A Continuous Solar Movie, Reels 1 and 2

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