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May 27 2026 APP 2.0.0-beta45 has been released !

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Tools - Star Color Calibration

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(@hans_van_overzee)
Red Giant
Joined: 9 years ago
Posts: 39
Topic starter  

ha Mabula ,

I have got a question. After I did in Tools Remove Light Pollution and Calibrate Background and wanted to do Star colour Calibration I got this screen. I just had done Calibrate Background I tried a couple of times but did not come any further.



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5260
 

Hi Hans, 

Did you go from background calibration directly to star color calibration?

In star color calibration you will need to load the file with postfix -cbg.fits

The reason is that the calibrate background tool finds value(s) for the actual background(s) which are needed for accurate and correct adjustment of star colors.

The tools are shown in the order in which you should use them, from top to bottom. Let me know if this helps Hans 😉

Mabula



   
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(@hans_van_overzee)
Red Giant
Joined: 9 years ago
Posts: 39
Topic starter  

ha Mabula,

Sorry no files apeared with the extension cbg.fits

Hans 



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5260
 

Hi Hans,

I'll make a video tutorial tomorrow showing the path from

  • remove light pollution
  • calibrate background
  • calibrate star colors
  • color adjustments/tweaks with selective color

using RGB data. Maybe that shows you why the -cbg.fits doesn't show.

Okay?

Kind regards,

Mabula



   
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(@hans_van_overzee)
Red Giant
Joined: 9 years ago
Posts: 39
Topic starter  

Thanks Mabula.

Take your time.

You are busy enough.

Regards

Hans 



   
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(@mabula-admin)
Universe Admin
Joined: 9 years ago
Posts: 5260
 

Thank you Hans,

But I might do it anyway ;-)...

Mabula



   
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