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Proceedings Paper

Design Of The Apache Point Observatory 3.5m Telescope I. Thermal Control Of The Telescope Enclosure
Author(s): Walter A. Siegmund; Charles Comfort
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Paper Abstract

Five universities are constructing a 3.5 m telescope facility on Apache Point (2800 m above sea level) in southern New Mexico. The telescope enclosure design, in addition to providing protection for the telescope includes thermal control features intended to minimize local seeing effects. The components of the thermal design of the telescope enclosure include minimization of heat and cold production, removal of observer support functions to a detached operations building, control of air flow through the telescope chamber, minimization of thermal mass which is thermally coupled to exposed surfaces, forced ventilation of instruments, telescope and enclosure base, emissivity control of surfaces coupled to the sky, and use of resistive heaters for condensation control in the telescope chamber.

Paper Details

Date Published: 20 August 1986
PDF: 8 pages
Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); doi: 10.1117/12.963553
Show Author Affiliations
Walter A. Siegmund, University of Washington (United States)
Charles Comfort, University of Washington (United States)

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

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