Which type of telescope focuses star light using mirrors?

Coudé telescopes use a convex secondary mirror like a Cassegrain and an angled mirror like a Newtonian reflector to move the light rays to a focal point away from the telescope. This arrangement is useful when optical equipment is being used that is too heavy to mount directly on the telescope.

1/0.14nm = 10^10/1.4 a lot

force tends to be low and long diustance masses are high