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Weird repeating stacking artifact?  

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(@chrisboar)
White Dwarf Customer
Joined: 2 years ago
Posts: 10
November 17, 2019 01:58  

Any suggestions on what is going on in this image.?  Same pattern but different colours. This is the only image I'm getting this weird repeating pattern all over the image. 30 flats, no calibration frames. Using pretty much all default settings on APP.

Stackingarticfact

 

This topic was modified 11 months ago by ChrisBoar

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(@ralph)
Red Giant Customer
Joined: 1 year ago
Posts: 78
November 18, 2019 07:40  

Hot pixels. Try making darks and a bad pixel map and apply those. Alternatively, you can play around with the outlier rejection settings.


(@chrisboar)
White Dwarf Customer
Joined: 2 years ago
Posts: 10
November 18, 2019 22:06  

Thanks, that did the trick. I didn't realise bad pixels resulted in such a repeated pattern across an image when stacking/integrating.

I used a Bad pixel map and also integrated with the 'quality' setting, and sigma kappa rejection set.


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