Optical characteristics of the UNAM 2-m Ritchey-Chretien telescope

Details Optical characteristics of the UNAM 2-m Ritchey-Chretien telescope Optical characteristics of the UNAM 2-m Ritchey-Chretien telescope

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apopt..21.3181n&link_type=abstract

Applied Optics, vol. 21, Sept. 1, 1982, p. 3181-3183.

Physics

Optics

1

Cassegrain Optics, Mirrors, Optical Properties, Telescopes, Astronomical Photography, Foci, Hyperbolic Systems, Paraboloid Mirrors

Scientific paper

A series of curvature and distance measurements were performed on the components and two assembled systems (focal ratios 7.5 and 13.5) of a 2-m Ritchey-Chretien telescope, and the actual characteristics of the telescope were then determined using a simple calculation procedure. The characteristics obtained are accurate enough to be used in designing the secondary mirror for other focal ratio combinations. A photograph of the Whirlpool galaxy M-51 taken with the 2-m telescope and a field flattener is presented.

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