🔭 Telescope Shootout Lab: Aberrations, Focal Ratio, Resolution Limit and Eyepiece Magnification

A Blender observing deck with an equatorial mount carrying a refractor, a Newtonian or a Schmidt-Cassegrain telescope: focal ratio, chromatic and spherical aberration, coma, obstruction, Airy-disc resolution of double stars with seeing, eyepiece magnification and exit pupil, live boards and eleven numerical checks.