Eclipse equipment,1875. Spectroscope,heliostat and Janssen apparatus set up in Calcutta,India,ready to measure the total solar eclipse on 16th April 1875 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Royal Astronomical Society |
Bildgröße: | 4781 px × 3673 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |