Micrometre eyepiece on a 6 inch telescope. The micrometre eye piece is used to measure celestial objects and distances. The telescope is set on an azimuth mount. Photographed at Capodimonte Observatory,Naples,Italy,in 1946 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Royal Astronomical Society |
Taille de l’image : | 3523 px × 4961 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |