Progress report on the Magellan 8-m telescope project

Alan M. Dressler

doi:10.1117/12.19170

1 July 1990 Progress report on the Magellan 8-m telescope project

Alan M. Dressler

Proceedings Volume 1236, Advanced Technology Optical Telescopes IV; (1990) https://doi.org/10.1117/12.19170
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

The Magellan Project has as its goal the construction of an 8-m aperture optical telescope at Las Campanas, Chile, whose f/1.2 parabolic primary mirror is of borosilicate honeycomb type. The principal configuration of the telescope will be with Cassegrain focus at f/6.26; image sizes are expected to be of the order of 0.25 arcsec rms over the entire field, from 0.33 to 1.10 microns without refocus. An IR Cassegrain focus is planned at f/15, with a chopping secondary of low emissivity. Despite the fast primary-mirror f-ratio, spherical aberration will be acceptably low when chopping is accomplished via rotation of the mirror about its vertex.

Citation Download Citation

Alan M. Dressler "Progress report on the Magellan 8-m telescope project", Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); https://doi.org/10.1117/12.19170

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