Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
When I do stacking of files from a single session, I use all the default settings in APP. But what if I stack 2 or more integrated files? Can I still use all the default settings? I am worried that the raw files used in each stack have already been processed in some way, so if I use all the default settings a second processing will happen, which may not be desirable.
Also, when I stack integrated files do I go through all the same steps as when I process the raw files initially? That is, do I read in each integrated file as a "light," then calibrate, analyze stars, etc? Or should I handle the set of integrated files in some different way?
If your original stacks already had "same camera and optics" checked in registration make sure to uncheck that. Other than than I stack integrated stacks often, especially in mosaics. Just load the various integrations as lights and have at it.
Here is the result of doing this: https://www.astrobin.com/b8xmsz/
What is the purpose of unchecking the same camera and optics in registration? Neither of those have changed in doing the integrations.
integrated files will already be calibrated, so you can simply integrated them together. You need star analysis, registration, normalisation for that. I would integrate with weights based on SNR if the stacked data sets differ widely in their integration times (or moon phase).Â
If your original stacks already had "same camera and optics" checked in registration make sure to uncheck that. Other than than I stack integrated stacks often, especially in mosaics. Just load the various integrations as lights and have at it.
Here is the result of doing this: https://www.astrobin.com/b8xmsz/
The files have already had any correction needed done to them. Also uncheck dynamic distortion correction unless doing a mosaic.
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