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Hmmm
the Panasonic MN34230, used in many popular astronomy cameras, I agree seems to have issues with long exposures (the Orion neb image was 2.2hrs..) of bright stars.
The reason for my interest is the fact that I use the ASI 1600 to image the brightest star in the sky (mag -26!) and regularly over expose the image to bring out faint prominence detail. I was concerned that these artefacts would impact on my ability to image this faint detail - so far that doesn't seem to be the case.
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