Illustration of a sunspot observed by the Italian astronomer Pietro Tacchini (1838-1905) on 25th June 1872. Illustration published in Le Ciel (The Sky), A. Guillemin, Paris, France, 1877. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Collection Abecasis |
Taille de l’image : | 3248 px × 2957 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |