May 27 2026 APP 2.0.0-beta45 has been released !
Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.
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.
I am new to APP and do not understand what I am doing wrong. I have an Atik 460 mono with Astrodon 1.25 inch filters. I am only shooting narrowband. I stack my NB images separately but when I try to combine them in any programme (APP or StarTools) they will not allow me as they are coming up different dimensions. My Ha is 2806 X 2233. My O111 is 2838 X 2222 and S11 2841 X 2230. The native Atik 460 is 2750 X 2200 Pixels. I am not binning
Any ideas on how I can make my images the same please.Â
@michael-tweedy When dithering is applied between images or when guiding is not completely perfect, the individual subs for each filter will not line up completely which adds additional pixel rows and columns to the final stacked images.Â
In order to align them you need to do a star alignment and save the aligned images. Simply load the stacked images in tab 1 as lights and then go to tab 4 to align them. Once done, save the stacked frames. Then you can combine them in tab 9.
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Wouter
IT WORKED. Dancing for joy. Thank you very much
