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Published byAlexia Hoover Modified over 9 years ago
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Observational techniques meeting #2
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Good use for diffraction: exoplanets
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Chromatic aberration
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Spherical aberration Parabolic Spherical
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Coma
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Astigmatism (e.g., Hale telescope)
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Field curvature (e.g., Oschin Schmidt telescope)
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Distortion BarrelPincushion Keck NIRC
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Reflection and transmission
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Telescopes Galilean (refracting) 40” refractor at Yerkes Obs.
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Telescopes: newtonean
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Telescopes: Cassgrain
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Telescopes: Cassegrain Ritchey-Cretien: Wise, HST, VLT …
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Interlude: mounts Equatorial Alt-az
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Telescopes: Coude Naysmith Coude
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Telescopes: prime focus
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Telescopes: Schmidt Schmidt Cassegrain Schmidt (e.g., PTF) Maksutov
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End
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