Projecting the image of the Sun through a refracting telescope on to a screen in order to study sunspots. From Rosa Ursina by Christoph Scheiner (Bracciano,1630). Engraving | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 2895 px × 3028 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |