MAY 4 2026: APP 2.0.0-beta44 has been released !
New improved internal memory controls should now work on all computers
May 1 2026: APP 2.0.0-beta43 has been released !
Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.
Apr 29 2026 APP 2.0.0-beta42 has been released !
New improved Normalization engine, Fixed random crashes in integration, fixed RGB Combine & Calibrate Star Colors, fixed Narrowband extraction algorithms, new development platform with performance gains, bug fixes in the tools, etc...
Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options
Update on the 2.0.0 release & the full manual
We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.
Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.
Hello. I am trying to combine images taken with an Askar D1 and D2. My results are dreadful. Any tips for the stacking?
Background: I am fairly new to APP; been using it for a couple of years, maybe 15 times. I use an ASI2600MC Pro, a ZWO EFW with the Askar D1 (OIII & Ha) and then the D2 (S-II & OIII), 180sec exposures, 30 frames of D1 then 30 with D2 looping until Astronomical Dawn. The OTA is an Askar SQA55 with ZWO EAF, guided by an ASI174MM-MINI and SvBony 30/120mm guidescope. The Askar doesn't have a set backfocus requirement, but I run at 56mm. I used NINA Smart Exposure. Star shapes great, Tilt is acceptable. Most of this doesn't matter to the stacking workload, but someone always asks.
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Thanks for the help,
Tyler
@monsonmjmgmail-com Hello, I am using a very similar setup, Askar D1/D2, ASI2600MC Air, Askar V telescope and I am 55-56mm of back focus. I am not entirely sure how your images are coming out but this is my basic workflow for APP (most tabs are default). Under 0) Raw-Fits, Pattern is RGGB, select Ha-Oiii Color for algorithm, and check Force Bayer/X-trans. Under 1) Load, check the box for multi-channel/filter process (optionally multi-session if over multiple nights). I keep my D1/D2 lights in separate folders and add master calibration frames to each folder. Then select D1 lights, assign it to a filter (I name it D1), repeat for D2, ensure calibration frames are added to each filter if not already auto-detected. 3), 4), and 5) can basically be run as default (or tweaked based on your preferences). Finally under 6) Integrate - I typically integrate "per channel and all" and then under multi session options I "integrate all." This will give you a D1 master, D2 master and combined D1/D2 master. You can also extract the Ha, Sii, and Oiii, channels in APP or PI to do a SHO workflow. I have had very good results with this filter and workflow.
Thank you! I'll give it a go. Cheers-
Good tip Brannon! Worked much better. Thank you
Good tip Brannon! Worked much better. Thank you
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Ok, I still have problems. The stacked fits looks pretty good in APP, but when I take it to Seti Astro for my first post processing it "shows massive stacking artifacts" according to the Seti developer. Not too sure how to share the fits file, but the jpeg is attached.Â
Thoughts?
@monsonmjmgmail-com Under #6 INTEGRATE and Mode are you using Full or Reference? Reference should minimize stacking artifacts. Even with the stacking artifacts in the picture you provided, they are easy to crop out (see my attachment of your pic). You can crop them after it is integrated under tab TOOLS - Batch Crop. I always crop out a little of the perimeter so the gradient removal does not think it is part of the picture.
