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Proceedings Paper

Baseline design of the SUNRISE Telescope
Author(s): Hermann Bittner; Matthias Erdmann; Peter Haberler; Klaus-Ruediger Hartel; Peter Barthol; Werner Curdt
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Paper 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.

Paper Details

Date Published: 28 September 2004
PDF: 11 pages
Proc. SPIE 5489, Ground-based Telescopes, (28 September 2004); doi: 10.1117/12.552007
Show Author Affiliations
Hermann Bittner, Kayser-Threde GmbH (Germany)
Matthias Erdmann, Kayser-Threde GmbH (Germany)
Peter Haberler, Kayser-Threde GmbH (Germany)
Klaus-Ruediger Hartel, Kayser-Threde GmbH (Germany)
Peter Barthol, Max-Planck-Institut fur Aeronomie (Germany)
Werner Curdt, Max-Planck-Institut fur Aeronomie (Germany)

Published in SPIE Proceedings Vol. 5489:
Ground-based Telescopes
Jacobus M. Oschmann, Editor(s)

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