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Eclipse expeditions

1952 - Khartoum, Sudan This was a joint HAO - Naval Research Laboratory expedition, which obtained 50 spectra of the eclipse features of the sun.

1958 - Pukapuka, Cook Islands in the PacificThis was a joint HAO - Sacramento Peak expedition that was unable to obtain a single photo due to rainstorms.

1959 - Fuertaventura, Canary Islands of SpainA joint HAO - Sacramento Peak expedition

1962 - Lae, New Guinea

1963 - Alaska and Canada

1965 - Bellingshausen Island, South Pacific

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