The Kew heliograph being used in an eclipse- viewing expedition to Spain, 1860. Depicting a temporary observation point with the Kew heliograph inside, surrounded by astronomers. This plate was taken from the Illustrated London News, volume 37, 1860. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Bildgröße: | 3042 px × 2065 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |