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.
Hello App members,
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From the Netherlands here i am busy with a mosaic project of the Orion nebula, horse and the 3 stars of the orion constellation? I want to try that out, but i have some questions.
I use my William optics GT81 with x0.8 and my ASI 294 MC pro on mt EQ6R pro mount.
About the mosaic that got 6 panels, each of them i did 15x180s with L-pro filter for RGB colours and 18 for HA,OII with my L-enhance dualband filter.
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Now is my question is this enough? Because some of them got satellite trials and the Orion constellations is almost behind the house of my neighbours. I got a FOV from the NE until the SW. And Orion is now at 1930PM in the south and getting closer to the SW.Â
This week will be sad in the Netherlands, i hope to get some clear skies here next week for each panel for 25 frames with L-enhance.
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Is there a tutorail of APP mosaic?
And every help or tip will be awesome. In english or dutch, doesn't matter.
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Hoi Stefan, ik zal even antwoorden in zowel Nederlands als Engels (voor de andere gebruikers);
- 15 frames per paneel kan prima, echter is dat waarschijnlijk te weinig om goede satelliet sporen weg te poetsen. Zal je moeten proberen, misschien met wat agressievere rejection parameters.
- De totale FOV lijkt wat breed, dat kan behoorlijk lastig zijn soms afhankelijk van de kwaliteit van de data en de projectie.
- Er is een wat ouder voorbeeld van mozaiek processing alhier: https://www.astropixelprocessor.com/mosaic-tutorial-milky-way-to-rho-ophiuchi-by-mabula/
- Een handleiding wordt aan gewerkt met als doel deze in de 2.0 stable release uit te brengen.
English:
- 15 frames per panel is fine, but that is probably too little to remove good satellite traces. You have to try maybe with more aggressive rejection parameters.
- The total FOV seems a bit wide, which can be quite difficult at times depending on the quality of the data and the projection.
- There is a somewhat older example of mosaic processing here: https://www.astropixelprocessor.com/mosaic-tutorial-milky-way-to-rho-ophiuchi-by-mabula/
- A manual is being worked on with the aim of releasing it in the 2.0 stable release.
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Succes en bij vragen kan je altijd hier terecht!
@vincent-mod dank je wel/thanks.Â
Het FOV wat ik bedoelde Is mijn vrije zicht vanuit mijn tuin van NO tot ZW. Orion is nu in zuid.Â
Ik hoop nog op wat heldere avonden om nog voldoende light frames te krijgen.
Wat is het maximum aantal ligth frames om de satelliet sporen weg te krijgen?
English:
The FOV what i mean is the free aight i have from my garden, from NE until SW.
what is the maximum of light frames to remove the satellite trails?Â
Er is niet echt een maximum, eerder een minimum. Het hangt ook af van de hoeveelheid aan sporen in totaal. Maar in principe heb je vanaf 30 frames vrij goede rejection.
@vincent-mod okay dank je wel. Dan is het alleen maar nog hopen dat er nog wat heldere avonden komen. Dank voor al je hulp
