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Hamburger Observatory - Oskar-Lühning-Telescope

The Oskar-Lühning Telescope is the largest telescope at Hamburg Observatory, and the second largest one in Germany. It is a Ritchey-Chretien system with 1.20m aperture diameter and a focal length of 15.60m in the Cassegrain focus. Built in 1975, it is also the newest instrument at the observatory. Building and mounting, however, date back to 1954; they originally housed the large Hamburg Schmidt Telescope, which was moved to Spain in the seventies.

In 2000 the telescope was modernized and equipped with a modern CCD camera. The camera is equipped with a SITe 1024x1024 CCD chip with a pixel size of 24μm, allowing imaging of a 5.4'x5.4' field with a resolution of 0.32''/pixel. The CCD is cooled by a thermoelectric cooler with forced-air. Broad-band Johnson filter B, V, and R, and a narrow-band H-α filter are provided for photometry in different wavelength bands. The operations of the telescope was adapted to modern standards with a newly written operation software. Operations are currently possible locally from any PC. Remote observing is foreseen in the near future. Since 2001 the telescope is used for teaching and small observing programs. The remote observing capabilities were extended in 2003 by the purchase of a weather monitor and a precipitation sensor. In 2005 first light of a high resolution spectrograph currently in development is foreseen.

Operation manual Oskar-Lühning-Telescope

Observing programs

Friday, 05-Jul-2004 17:23:27 CET | R.Mandrysch, D.Engels