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Solar Activity 79:136 (2008-003)
VI: Yerkes Observatory
Calcium spectroheliograms of the solar prominence of 19 and 20 June 1911. Nine views.
Sun--Surface | Solar prominences | Solar phenomena | Spectroheliograms
1911-06-19/1911-06-20
Lantern slides; 3.9 x 7.3 cm
Archival Photographic Files
University of Chicago Library, Special Collections Research Center
apf6-02353

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