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.
APP is not analyzing stars so I cannot register my data. I am using a DSLR camera. I must be missing a step or something. Anyone else have this problem?
Hi bdmccarver,
In version 1.055, I adjusted some details regarding how stars are detected from the data. This was needed, especially for very high quality data with lots of nebulosity.
In 4) analyse stars, you have the detect above noise kappa setting. Can you please check what happens if you lower the kappa value?
The default value is 80, which in some cases seems to be much too high. So lower it to a value of 20-40, then APP should really start to detect stars.
Let me know if this helps and solves your issue.
Kind regards,
Mabula
I had to go down to 10 before it worked. Thank you for your help and quick response!
Hi bdmccarver,
Thank you for your feedback. 10 is quite low indeed. I am happy it works now.
Can you share the specifics of your data? Like camera, iso/gain, exposure time and OTA + focal length? That will be very valuable for me to know.
I am thinking of adjusting this kappa setting to a more automated setting that will just work for all sorts of data. But it will complicate quality comparison between the frames, so I need to give it more thought.
Kind regards,
Mabula
I am using a modified Canon T3i, ISO 1600, William Optics ZS71ED with .8 focal reducer, fl of 335mm. My exposure time is 2.5 minutes.
Hi bdmccarver, thank you for the details. That helps 😉
Mabula
