X-Nico

3 unusual facts about Cassegrain reflector


Alexander Aubert

Amongst the latter were a Dollond 46-inch achromatic, aperture 3¾ inches, and the one Cassegrain reflector constructed by Short, of 24 inches focus and 6 aperture, known among opticians as 'Short's Dumpy.'

Anton Kutter

Kutter was awarded two golden medals at the Venice Biennale and he invented the well-known Schiefspiegler telescope which is a modified Cassegrain reflector featuring superb optical definition due to an off-axis secondary mirror.

SkyMapper

The telescope has a compact modified Cassegrain design with a large 0.69 m secondary mirror, which gives it a very wide field of view: its single, dedicated instrument, a 268-million pixel imaging camera, can photograph 5.7 square degrees of sky.


Boller and Chivens

A 41-cm (16-inch) Boller and Chivens Cassegrain reflector originally housed at the Harvard-Smithsonian Oak Ridge Observatory in Massachusetts is available for public use at the National Air and Space Museum's Public Observatory Project on the National Mall in Washington, DC.


see also

Cassegrain

Laurent Cassegrain, a Catholic priest and teacher and probably the inventor of the Cassegrain Reflector