Main mirror maintenance of the 90 cm telescope
Disassembly, coating, and assembly were done by -4H- Jena engineering GmbHExternal link.
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Our 90 cm Schmidt telescope inside its dome
Image: F. Gießler -
Removing the protection cap
Image: F. Gießler -
Mirror mount – with axial and radial support elements
Image: F. Gießler -
Lassell levers – axial support in more detail
Image: F. Gießler -
Inside the telescope – time, dirt, and moisture have taken their toll
Image: F. Gießler -
Removing the mirror mount
Image: F. Gießler -
Main mirror – mirror and mount together are 760 kg
Image: F. Gießler -
Radial support elements
Image: F. Gießler -
Removing the radial support elements from the mirror mount
Image: F. Gießler -
The mirror – made from glass, diameter: 1 m, thickness: 17 cm, mass: 315 kg
Image: F. Gießler -
Wooden transport box
Image: F. Gießler -
Two weeks later – as good as new
Image: F. Gießler