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Description: | Calcium and hydrogen flocculi, surrounding the great sun-spot of 1903, October 9, High level H2 slit at 3968.6, 3h.30m. C.S.T. Hydrogen slit at centre of Hs, 1h. 4m C.S.T., taken with the Rumford Spectroheliograph and 40-inch refractor at Yerkes Observatory by G.E. Hale and F. Ellerman | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Subjects: | black-and-white prints (photographs) Sun sun spots astrophotographs | Temporal: | 1903 | Source: | Science Museum | Creator: | Yerkes Observatory | Identifier: | 1912-417 | Go to resource |
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