Physics – Optics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993s%26t....85...26r&link_type=abstract
Sky & Telescope (ISSN 0037-6604), vol. 85, no. 5, p. 26-32.
Physics
Optics
Mirrors, Procurement, Telescopes, Adaptive Optics, Astronomical Observatories
Scientific paper
The twin 8.1-m reflectors planned by the Gemini Project for Mauna Kea (Hawaii) and Cerro Pachon (Chile) will provide access to the entire sky and thus an 'edge' over the 16-m-equivalent Very Large Telescope, the 11.8-m-equivalent Columbus, 10-m Keck I and II, and 8.3-m Subaru. This paper discusses the technical difficulties and problems encountered in the course of the Gemini telescope development, which require important design alteration decisions. Particular attention is given to the considerations involved in the choice of the telescope mirror (i.e., a meniscus vs. honeycomb) and the ramifications of Gemini's final decision concerning the choice of the mirror vendor and the future of the Mirror Laboratory (first chosen for casting the borosilicate honeycombs but followed by the final selection of the solid meniscus blanks) and its continued development of new technologies.
Murray Jack
Robinson Leif J.
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