Technical description of the U.K. large telescope

Details Technical description of the U.K. large telescope Technical description of the U.K. large telescope

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1236...26d&link_type=abstract

IN: Advanced technology optical telescopes IV; Proceedings of the Meeting, Tucson, AZ, Feb. 12-16, 1990. Part 1 (A91-23201 08-89

Astronomy and Astrophysics

Astronomy

1

Infrared Telescopes, Mirrors, Seeing (Astronomy), Astronomical Observatories, Costs, Optical Equipment, Root-Mean-Square Errors, Systems Engineering, Temperature Control, Wind Tunnel Tests

Scientific paper

The British astronomical community is currently engaged in the development of an 8-m aperture visible/IR telecope whose structure is based on the successful Herschel 4.2-m telescope. The primary mirror will be of meniscus type, with a 40:1 aspect ratio and active support; two secondaries will be used, of which the first (f/7) will furnish a corrected 40-arcmin field, while the second (f/35) can be chopped for use in the thermal IR. Enclosure design options under consideration encompass a carousel, a conventional hemispherical dome, and a lightweight octagonal enclosure.

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