11880209 - Du Pont 2.5-metre telescope at Las Campanas,Chile11880235 - Du Pont 2.5-metre telescope at Las Campanas,Chile11880150 - Primary mirror of the Keck II telescope,Hawaii11880149 - Primary mirror of the Keck II telescope,Hawaii11880152 - Cleaning the primary mirror of Keck II telescope11880023 - Checking the mirror for Large Binocular Telescope11880020 - Primary mirror of the Hobby-Eberly Telescope11880238 - Making the 6.5-metre mirror for Magellan telescope11880155 - Polishing of mirror for use in Gemini telescope11880022 - Polishing of a telescope mirror for use in the MMT11880024 - Checking the mirror for Large Binocular Telescope11880021 - Primary mirror of the Hobby-Eberly Telescope11880156 - Polishing of mirror for use in Gemini telescope11879770 - Engraving of the mirror from Herschel's telescope11880151 - Primary mirror of the Keck II telescope,Hawaii11880590 - Hubble Space Telescope mirror being manufactured11827105 - Roger Angel,American maker of telescope mirrors13452075 - Pic du Midi observatory, France11711454 - Pic du Midi observatory,France11618893 - Catania Carte du Ciel telescope,189411880042 - Pic du Midi observatory11880164 - Primary mirror Keck
