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Image for: Historischer Himmel: Halbes Jahrhundert Potsdamer Sonnenforschung digital


Fotografisches Negativ einer Aufnahme der gesamten Sonnenscheibe, auf der Gruppen von Sonnenflecken zu sehen sind. Sie entstand am 3. Februar 1949 im Sonnenobservatorium Einsteinturm.
Fotografisches Negativ einer Aufnahme der gesamten Sonnenscheibe, auf der Gruppen von Sonnenflecken zu sehen sind. Sie entstand am 3. Februar 1949 im Sonnenobservatorium Einsteinturm.

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