Plate measuring microscope, 1895. A woman measuring star positions on a photographic plate during the compilation of the Carte du Ciel at the Paris Observatory. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Heritage Images / Oxford Science Archive |
Taille de l’image : | 3398 px × 3079 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |