German mounting
Inauguration: 29 September 1935
  • Refractor: Four lens objective,
    Aperture 40 cm
    chromatic correction 390 to 460 m
    Focal l. 200 cm
    Image scale 1.42'/mm
    Field 8o
    Photographic plate 30x30 cm2
  • Reflector: Parabolic mirror:
    Aperture 60 cm
    Focal l. 240 cm
    • Newton System:
      plane secondary mirror,
         22 cm at 45
      Image scale 1'.22/mm
      Field 2.6o
    • Cassegrain System:
      convex secondary mirror
         15 cm
      Equivalent focal l. 820 cm
      Image scale 25"/mm
      Field 50'