Sunspots. Observations of the passage of sunspots across the solar disk in December 1625 and January 1626. From Rosa Ursina by Christoph Scheiner (Bracciano,1630). Engraving | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 2945 px × 2975 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |