Miroir sphérique, télescope de Cassegrain concours Mines 05
The Cassegrain telescope [15] | Download Scientific Diagram
A Cassegrain telescope uses two mirrors as shown in above figure. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of the large mirror is
Cassegrain reflector | astronomical instrument | Britannica
How to collimate a Schmidt-Cassegrain telescope - BBC Sky at Night Magazine