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Advanced Optical Measurement Techniques: Astronomy Insights

Explore measurement techniques in astronomy through the lens of advanced optics. Topics include aperture sizes, focal lengths, and spherical aberration effects in imaging systems. Discover how advancements in telescope technology are revolutionizing astronomical observations.

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Advanced Optical Measurement Techniques: Astronomy Insights

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  1. ASP2011 Measurement TechniquesLectures 5-6 Dr. Duncan Galloway University of Melbourne D.Galloway@physics.unimelb.edu.au http://www.ph.unimelb.edu.au/~duncang

  2. The AAT; aperture ~3.9m, focal length of 12.7m, giving f/3.3 at prime focus http://www.aao.gov.au The Giant Magellan Telescope (2016?); full aperture 25.3m, primary mirror focal length 18m, giving f/0.7 for the mirror assembly http://www.gmto.org

  3. Top - Corner detail from a photograph taken with a good quality lens. Bottom - Detail from a similar photograph taken with a wide angle lens showing visible chromatic aberration (especially at the dark edges on the right).

  4. A point source as imaged by a system with (top) negative, (center) zero, and (bottom) positive spherical aberration. Images to the left are defocused toward the inside, images on the right toward the outside..

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