Solar Flare, c. 1970

Solar Flare, c. 1970, Australia, CSIRO Solar Observatory Large sunspot.

Caption : “Large sunspot photographed in the wing of hydrogen alpha line. This shows the sunspot as it appears at the chromospheric as opposed to the photospheric level.”

Vintage gelatin silver print

19,7 X  25 cm / 7,8 x 9,9 inch