Abstract
Visual impressions and a photograph of an intense white light flare are presented. A densitometer trace across the 4 July 1974 flare showing relative intensity of the white light flare, photosphere and umbra is also shown. A second white light flare is suspected on a photograph taken 43/4 hrs later. Both flares coincide in time with major Hα-flare activity.
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Feibelman, W.A. Visual and photographic white light flare observations of 4 July 1974. Sol Phys 39, 409–413 (1974). https://doi.org/10.1007/BF00162434
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DOI: https://doi.org/10.1007/BF00162434