This image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
License this image for commercial use at Science and Society Picture Library
Glass positive:- Spectroheliogram, H and Bright filaments, T Science Museum Group © The Board of Trustees of the Science Museum
Glass positive:- Spectroheliogram, H and Bright filaments, T. Royds Kodaikanal Observatory, South India, 1926, February, 22d 8h 8m, 10" x 8"