Fraunhofer telescope. Artwork of a refractor telescope designed by the German optician and glassmaker Joseph von Fraunhofer (1787-1826). This 9.5 inch (24 centimetre) telescope was installed at the Dorpat Observatory in Estonia in 1824 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Royal Astronomical Society |
Taille de l’image : | 3354 px × 5320 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |