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Proceedings Paper

The ESO Very Large Telescope Project
Author(s): Daniel Enard
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Paper Abstract

The ESO VLT base line concept is a fixed array of four 8 m telescopes; other concepts based on the same optical configuration for the unit telescopes are however still considered. Among other possibilities, the two main options for the primary mirror blank are either low expansion glass ceramic or highly structured steel. Limited tests have been done with both solutions. The unit telescopes have a classical Alt-Azimuth architecture but are designed so as to operate in the open air without a surrounding building. Their proper functioning relies heavily on the active control of the optical elements. The building is intended to provide only a day time protection. Several types of low cost enclosures have been investigated. A partial protection against the prevailing strong winds is also under consideration.

Paper Details

Date Published: 20 August 1986
PDF: 6 pages
Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); doi: 10.1117/12.963533
Show Author Affiliations
Daniel Enard, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 0628:
Advanced Technology Optical Telescopes III
Lawrence D. Barr, Editor(s)

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