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2022-05-29: APP 2.0.0-beta2 has been released !

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Download links per platform:

windows 2.0.0-beta2

macOS x86_64 2.0.0-beta2

macOS arm64 M1 2.0.0-beta2

Linux DEB 2.0.0-beta2

Linux RPM 2.0.0-beta2

Process stars separately

White Dwarf Customer
Joined: 3 years ago
Posts: 25
Topic starter  

I'd like to learn how to process stars separately, particularly adding RGB stars to a narrowband image.  I'd also like to learn how to layer an Ha image onto an RGB image.  Does APP have an algorithm to help with these tasks?  Thanks!

Galaxy Admin
Joined: 4 years ago
Posts: 1723

@jehoener It is currently not possible to process stars separately but this functionality will be added to the upcoming version 1.083. See

As for adding Ha to an RGB image, you will need to split the RGB channels into separate R, G and B images and then use Combine RGB in tab 9 to blend them together.