The sun photographed in hydrogen light. On the left, just above the equator, is a series of solar flares. Photograph c1900.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, astronomy, c1900., equator, flares., historical, history, hydrogen, left, light, light., photograph, photographed, science, series, solar, sun