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Astronomy and Cosmology
Astronomy and Astrophysics
Diffraction Effects and Artifacts in Telescopes like the JWST
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[QUOTE="sophiecentaur, post: 6812942, member: 199289"] That's a help. I was talking about the 'dust rings'. But aren't they the most remarkable feature? Problem is, there are thousands of JWST star images with a range of exposure values. There are a number of odd shaped objects out there - take this [URL='https://en.wikipedia.org/wiki/Red_Square_Nebula']square nebula[/URL], for example. That's not considered to be an optical artefact. Diffraction effects are very repeatable; all that's needed is for the brightness of the object to be appropriate - just as the diffraction spikes in images from Newtonian scopes only seem to be present on the brighter stars. I'm not saying that the image cannot be due to diffraction - just that, if it were, there would be many many other examples of the same thing. [/QUOTE]
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Diffraction Effects and Artifacts in Telescopes like the JWST
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