Design Of The Apache Point Observatory 3.5m Telescope I. Thermal Control Of The Telescope Enclosure

Walter A. Siegmund; Charles Comfort

doi:10.1117/12.963553

20 August 1986 Design Of The Apache Point Observatory 3.5m Telescope I. Thermal Control Of The Telescope Enclosure

Walter A. Siegmund, Charles Comfort

Proceedings Volume 0628, Advanced Technology Optical Telescopes III; (1986) https://doi.org/10.1117/12.963553
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

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.

Citation Download Citation

Walter A. Siegmund and Charles Comfort "Design Of The Apache Point Observatory 3.5m Telescope I. Thermal Control Of The Telescope Enclosure", Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); https://doi.org/10.1117/12.963553

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