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2023-09-28: APP 2.0.0-beta24 has been released !


Improved application startup, fixed application startup issues, upgraded development platform to Oracle GraalVM JDK21

We are very close now to  releasing APP 2.0.0 stable with a complete printable manual...

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HOO bicolor workflow

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White Dwarf
Joined: 5 years ago
Posts: 6
Topic starter  

Hi, I am hoping someone can share their workflow in the RBG combine tool with latest version 1.079. I have some Ha and Oiii data, noticed that in 1.079 I can add the channel with a HOO 1 or 2 formula but not having much luck to tease out the colors. 

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Hydrogen Atom
Joined: 4 years ago
Posts: 2

Hi Tim Looi

Please, check out the video of B&K Science and Astronomy on You Tube.  Here is the link :


I processed my Duo-Narrowband data of the Rosette Nebula following his workflow with Astro Pixel Processor. The result was great.

It's done with an older version of APP, but I don't think that the RGB combine tool has changed that much. 

Also the videos of Rutger Bus and Astrostace gave me that extra information that I needed concerning Duoband processing with APP.

Here the link to Rutger Bus' video:

Here the link to the video of Astrostace: 


Good luck!

This post was modified 3 years ago 4 times by Beatrice Heinze