Dorothea Klumpke Roberts, American mathematician and astronomer, 1903. Roberts (1861-1942) at work on the Carte du Ciel at the Paris Observatory. She is using a plate-measuring microscope to measure positions of star images on photographic plates. She was the first woman to make astronomical observations from a balloon. From La Science Illustree. (Paris, December 1903). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 3553 px × 4913 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |