• Hubble Space Telescope Backup Mirror
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    Disk shaped glass object. Concave highly polished and figured glass faceplate fused onto an eggcrate lattice core with fused backplate and outer edgeband. Has three mounting holes and a large central hole for the R-C focus. Glass blank was fabricated by Corning from Corning Ultra-Low Expansion glass. A few blemishes, fuse burns and bubbles exist in this otherwise pristine mirror.
Created by
Eric Long
Date Created
09/21/2012
Source
National Air and Space Museum & Smithsonian Institution Archives
Keywords
Astronomy; Exploration; Instruments; Science; Space; Telescopes
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