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Torben Anderssen. Profile picture.

Torben Andersen

Professor emeritus

Torben Anderssen. Profile picture.

Technology demonstration solar telescope

Author

  • Torben Andersen
  • Oddbjrn Engvold
  • Mette Owner-Petersen

Summary, in English

The conceptual design of the Large Earth-based Solar Telescope (LEST)has evolved through the years. In 1995-97 it was discussed whether atechnology demonstration telescope could be built at a lower cost thanthe LEST originally proposed. In 1997, a de-scoped LEST design, theso-called "Mini-LEST", was conceived and proposed to the LEST community.The telescope has an innovative design with a small field lens thatmakes the way for simple adaptive optics. The optical performance isexcellent. It has a low-cost alt-az steel structure with a large slewingring for the azimuth movement and direct-drive motors for simplicity.The telescope is open but can easily be modified to a Helium telescopeto compare performance of Helium filled telescopes vs. open telescopes.The tower has also been simplified to reduce cost. It has a dome designthat provides protection for wind and yet permits open-air observations.The budget shows an overall cost of 37.6 MSEK and an exectution time ofless than four years.

Department/s

  • Lund Observatory

Publishing year

2002

Language

English

Publication/Series

LEST Foundation Technical Report

Document type

Report

Publisher

Institute of Theoretical Astrophysics, Norway

Topic

  • Astronomy, Astrophysics and Cosmology

Keywords

  • Solar Telescope

Status

Published

Report number

64

ISBN/ISSN/Other

  • ISSN: 0800-7780