2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
Could someone tell me what settings I need to apply to remove satellite trails in the latest version of APP. I used to be able to do this but I cannot see what I should be changing in the integration. My latest integration had two satellite trails.
Peter
Got it. I didn't realise that you had to swap from automatic to average to introduce clipping.
Peter
It should be selecting the proper rejection algorithm automatically if you have a proper number of lights, like at least 15 I think.
Well I had 25 lights and it left the trails in. When I selected average instead and used a sigma it removed them.
Peter
Excellent, if the trails are indeed very prominent you may need to change the settings indeed. Automatically it will have pretty mild rejection.
Where is this option.. I am new to using the program and I have had some bad issues with StarLink Satellites messing up my images.
@spacemanbob see tab 6 and select a different option than automatic. When you hover your mouse over the drop down, APP will tell you which one to choose based on the number of lights that you have. Then the other options become available and you can select the values that are suitable to get rid of the satellite trails.
Wouter, Can you tell me setting to leave all the satellite trails in the image? I want to create an image showing how many satellites go through my target. Thanks, Carol
@carsan Carol, when hovering the mouse over that "integrate" drop down you get this popup that explains to use the "maximum" option. Have you tried that?
@wvreeven I did not see that option. I will try it. I think it would be cool to show people how many satellites are crossing through a small area of the sky. Thank so much.
