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.
Hi
I have uploaded my data on "upload1:upload1" and tried the LRGB tutorial. But integration fails with "registeration failed". I do have some bad frames, but indivdual fits look okay
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Uploaded the lights and darks under a folder "tsk1979 upload". Upload going on at 2.7mbps currently, may take entire night I guess
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Vincent, can you please help?
You can just upload a subset of your data, like 20 frames of each data type, that should already show the problem.
@vincent-mod
Thanks. i have uploaded a few frames now. I see directory has quite a bit of data of various lengths to integrate
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Hello @vincent-mod did you get a chance to look at my data. I tried various settings again, yet registeration fails. I used a QHY183m with a ES102ED and no flattner
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I tried the beta and now 191 our of 256 images got registered. but final combined image is a blank. I uploaded the fits for individual channels and the integrated combined image to my folder
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See screenshot. Combined RGB is black. Individual channels cannot open with ASIFITS view
@vincent-mod were you able to see my dataÂ
Not yet Tanveer, busy days. I'll have a look today!
@vincent-mod
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Thank you. With the Beta I was able to get past the no registration issue. Now I have the issue of individual channel FITS being unreadable in ASIFITSview and stacked combined image being totally black
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Yes I see that in your other post, still downloading (slow connection), I'll have to get back to it tomorrow unfortunately. Will do asap then.
Hi Tanveer,
Can I see the issue with a smaller dataset as well? Unfortunately I'm having trouble downloading everything, could you point out the data that should be enough to see the issue so I can download a part? Sorry for the inconvenience.
@vincent-mod
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What about the combined fits. I was able to do an integrate per channel but those files return a dark combined fits.
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Let me upload 3 files from each channel and update you
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I'll download the combined fits to double-check and yes 3 files from each should be fine, if you can point out which ones exactly then I can work on those. Thanks a lot for your patience!
@vincent-mod Thanks!
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You can download 3 files of each type I uploaded here
Files are named as <channel>_time
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There are a few 300s FITS and a few 60 second fits
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Download three of each (any three)
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The tool could not register any of the Ha FITS. But Lum and other channels had 75%+ registeration
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The issue now I am facing is that the combined FITS for a channel is not openable in ASIFITSviewer, and even the total combined FITS is not openable.
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So since bandwidth is an issue can you please see
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1. Why is the Ha channel not being registered, why are the FITS rejected?
2. Why the per channel FITS not openeable?
3. Why is the combined FITS black
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Thanks, yes I'll have a close look and come back to you tomorrow and hopefully have an actual answer. 😉
Ok Tanveer. I had a look and didn't need to process as I found the signal already looking very strange in a red light frame. Looking at the FITS data, the offset on your camera is set to 0, which is not right. You need a proper offset for it (and all calibration frames).
@vincent-mod
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Thanks!
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Looks like I messed up in acquisition. I did an offset of "0" while acquisition. Looks like I need to re-acquire the data with proper offset
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