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The Ernst Hartwig Telescope


The 50 cm Planewave CDK Telescope located in the eastern dome is named Ernst-Hartwig-Telescope (EHT), after Ernst Hartwig, the first director of the Remeis Observatory. It was mounted on a 10Micron 4000 HPS mount in September 2013.

For the readers interested in the technical details:

  • corrected Dall Kirkham type (CDK)
  • spherical primary-, elliptical secondary mirror
  • full compensation of aberrations
  • focal length 3454 mm
  • aperture ratio f/6.8

Since the 1960s, there have been no scientific observations at the Remeis Observatory anymore. With the new instrumentation, it is possible to revive these observations. So far the EHT has been used for searching exoplanets with the timing method and as the main instrument for the MAPLE project.