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Banner image: ETH Library Zurich, Public Domain

Old coronagraph image 1: ETH Library Zurich, Public Domain, Author: Max Waldmeier

Old coronagraph image 2: ETH Library Zurich Dia_244-078, License: CC BY-SA 4.0, Author: Max Waldmeier

Solar prominences Video: ETH Library Zurich, Author: Max Waldmeier

Other images: by the author, released into Public Domain

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