KnowraRitchey–Chrétien telescopeLinked fromLinked fromThe 3 pages that link to Ritchey–Chrétien telescope, each with the reason it gives.All 3Broader topic 1Related 1Compared with 1Hubble Space TelescopeRelated: Hubble’s two-mirror optical system uses this design to deliver sharp images across a wide field.Spherical aberrationBroader topic: Its mirror shapes correct spherical aberration in a wide-field telescope system.Schmidt–Cassegrain telescopeCompared with: Its all-reflective, aspheric design contrasts with the spherical mirror and refractive corrector.