Baseline design of the SUNRISE Telescope

Hermann Bittner; Matthias Erdmann; Peter Haberler; Klaus-Ruediger Hartel; Peter Barthol; Werner Curdt

doi:10.1117/12.552007

28 September 2004 Baseline design of the SUNRISE Telescope

Hermann Bittner, Matthias Erdmann, Peter Haberler, Klaus-Ruediger Hartel, Peter Barthol, Werner Curdt

Proceedings Volume 5489, Ground-based Telescopes; (2004) https://doi.org/10.1117/12.552007
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The SUNRISE telescope is part of a balloon-borne instrument for spectro-polarimetric high-resolution observations of the solar atmosphere, to be flown 2007/2008 in the Antarctic summer stratosphere. It is a 1-m UV-VIS Gregory type telescope, operating close to the VIS diffraction limit. The telescope has a steel central frame and a lightweight CFRP trusswork structure with Serrurier properties, providing proper alignment of the optical elements over the varying eleva-tion angle. Mechanisms allow a fine adjustment of the optics. Aberrations caused by residual deformations of the stiff silicon carbide (Cesic) primary mirror are lowered by a dedicated offset in the secondary mirror polish (imprint). The telescope is subjected to the changing heat loads caused by the sun and earth radiation, necessitating measures to provide thermal conditions suitable for high-performance observations. Adequate preliminary solutions for an effective baffling are outlined.

Citation Download Citation

Hermann Bittner, Matthias Erdmann, Peter Haberler, Klaus-Ruediger Hartel, Peter Barthol, and Werner Curdt "Baseline design of the SUNRISE Telescope", Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); https://doi.org/10.1117/12.552007

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