reflecting telescope

A reflecting telescope, or reflector, is a telescope that uses mirrors to magnify and focus an image onto an eyepiece or other device, such as an array of charge-coupled devices. Its main advantage is that, unlike a refracting telescope, it does not suffer from chromatic aberration. The main designs of reflector in use today are the Newtonian, Cassegrain, and Ritchey-Chrétien telescopes.