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Proceedings Paper

A super-corrected atmospheric dispersion corrector
Author(s): Paolo Spanò
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Paper Abstract

The effects of atmospheric dispersion are well known in astrometry and astronomical spectroscopy. To reduce these effects, glass prisms are used. Two different prisms, coupled together, give better corrections. However glass dispersion curves do not match very well the dispersion of the atmosphere and secondary spectrum of the order of 50-100 milliarcseconds (mas) or more will be present. I propose a method to find solutions with residuals less than few parts of 10 milliarcsecond and I show some results.

Paper Details

Date Published: 23 July 2008
PDF: 8 pages
Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70181G (23 July 2008); doi: 10.1117/12.789161
Show Author Affiliations
Paolo Spanò, INAF-Osservatorio Astronomico di Brera (Italy)

Published in SPIE Proceedings Vol. 7018:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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