Eclipse expedition instruments,1889. American Astronomer David Peck Todd (1855-1939) standing with his battery of automatic instruments. These were taken with him on his expedition to West Africa in 1889 to observe the total solar eclipse there | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Astronomical Society |
Bildgröße: | 3071 px × 5749 px |
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