Optical Infrared Sky Survey Instrumentation

Eric R. Craine

doi:10.1117/12.957081

3 May 1979 Optical Infrared Sky Survey Instrumentation

Eric R. Craine

Proceedings Volume 0172, Instrumentation in Astronomy III; (1979) https://doi.org/10.1117/12.957081
Event: Instrumentation in Astronomy, 1979, Tucson, United States

Abstract

An unusual, highly modified, Baker reflector-corrector class telescope has been adapted for wide field survey photography in the near infrared. This optical system uses a full field corrector plate and a field flattening lens to provide a flat field subtending about 4:5 on the sky. The small aperture telescope (20 inch primary) has been modified for use in the Newtonian focus configuration while preserving the optical elements of the Prime focus configuration. The telescope has been further modified to accept a very large format (146mm diameter photocathode) image intensifier camera to serve as a detector. The camera output is recorded photographically on film rather than glass plates. This uniqueinstrument system is used in a program of sky survey photography in the optical infrared (8000-9000Å bandpass) supplemented by visual bandpass photography. The photographs obtained with this system are of value not only for the extreme redness of the band but also because of their high resolution and their freedom from hydrogen emission.

Citation Download Citation

Eric R. Craine "Optical Infrared Sky Survey Instrumentation", Proc. SPIE 0172, Instrumentation in Astronomy III, (3 May 1979); https://doi.org/10.1117/12.957081

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