File:Skylab solar flares in extreme ultraviolet (S74-21921).jpg

Summary

Description	English: Sun photographed by Apollo Telescope Mount through spectroheliometer at a wavelength of 625.3 angstroms. The black areas are the surface of the sun; the reds, yellows and whites are the corona some 70,000 kilometers above the surface.
Date	1974
Source	https://images.nasa.gov/details-s74-21921 (image link)
Author	NASA

This image or video was catalogued by George C. Marshall Space Flight Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: S74-21921.

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