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Strange rectangular artifacts when extracting HA or Oii


(@gegolden)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 2
Topic starter  

I am getting a Square surrounding my stacked extracted Oiii files.  It does not seem to appear with UVIR or Ha.  But extracting Oiii it is pronounced.  Any ideas of what could be the cause?  Using C11 Hyperstar with Atila dual band filter. 

DOUBLELP
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(@vincent-mod)
Universe Admin
Joined: 6 years ago
Posts: 5218
 

I really had to look for it, but I indeed see it. I'm actually seeing it in both your screenshots, is that correct?


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(@gegolden)
Hydrogen Atom Customer
Joined: 2 years ago
Posts: 2
Topic starter  

Yes that is correct.  It is more pronounced when I work on the processing.  Here is another example of the square appearing when I tried M33 HA/Oii extraction. You can see the rectangle.    Any suggestions on how to process that out?   I am using Hyperstar, ASI071 and an Atila dual band filter.   

Thank you for any assistance.  It is appreciated. 

 

Screenshot (879)

 


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