Group Information- Members: 328
- Category: Telescopes
- Founded: Nov 29, 2006
- Language: English
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Description
A group dedicated to the Roddier test for evaluating telescope optics.
The "files" area has results for different telescopes and a Cookbook to help you test your own optics.
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Re: Artificial Star Question
... Dr. Biretta - sorry for any confusion about some of these details. All the Zernike coefficients displayed by OpenFringe are normalized,i.e., an error
Posted - Sat Jun 13, 2009 4:42 pm
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m_hollimon
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Re: Artificial Star Question
Hi Mick, I'm trying to follow along the numbers in these recent posts. Couple random questions.... So you are doing interferometry at the radius of curvature,
Posted - Fri Jun 12, 2009 10:28 pm
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zeissnut
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Re: Artificial Star Question
Dr. Biretta/Group - A careful further examination of the data in the comparison table of post # 673, plus some investigation into how the performance numbers
Posted - Fri Jun 12, 2009 3:54 am
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m_hollimon
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Re: Artificial Star Question
... Dr. Biretta - thanks, I understand. Peculiar that I get a 0.02-0.04 Strehl improvement by turning them off; the mirror shouldn't have much roughness
Posted - Thu Jun 11, 2009 1:14 am
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m_hollimon
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Re: Artificial Star Question
... These are the higher-order aberrations or residuals after the other listed Zernikes are subtracted off. It will contain narrow zones, edge effects, bumps,
Posted - Wed Jun 10, 2009 11:55 pm
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zeissnut
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