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.
Hi. I have gathered all the OSC panels for the second half of my full Milky Way mosaic, however they are not registering correctly.  I am using exactly the same settings as I used on my Carina to North America mosaic which worked very well
From the attached images you can see that the Vela region by itself registered ok as did the region from Orion to Taurus, but registering all together fails.
Â
I have tried 2.0.0 betas 4 and 13 and both fail quite badly. (13 worse than 4)
I reverted to 1.83.2 and it seems to do a better job but still not right with just a few panes not registering and highly distorted.
Can you suggest what might be going wrong ?Â
Important Settings as follows :
Analyse stars set to 10,000
Mercator projection 40mm / 4.63um pixel size Â
Registration pane changed to somewhere near the middle of the mosaic (reduces distortion of the finished mosaic)
Pattern recognition : triangles
Scale start : 1 / Finish : 15
Dynamic distortion on / same camera and optics off
Other notes : Not all panes are exactly the same size.  Most are 4137x2815 +/- 2 pixels but one is 4121x2796 and one is 4137 x 2837. (from my previous successful Milky Way I found they had to be very similar in size)  Also I think a couple of pane pairs have only about 10% overlap
Any advice would be much appreciated.
Â
Thanks,
Kelvin Hennessy
Â
That looks like the dynamic distortion correction going wrong. Could you try to see what happens when you switch that off when you combine both regions? I also think you don't need 10.000 stars, try it with 2000 on the latest beta.
 @vincent-mod thanks for the advice.  I ended up going back to basics using the settings from the old mosaic tutorial on this site, then gradually added different processing combinations over a couple of days.  Here is a draft version of the processed results.  I still have much work to do on the doubled-up stars in certain areas and different star sizes between some panes - I consider this quite messy. I will likely capture some more frames with the dual OSC camera rig on pane-pairs where there is small overlap which clearly causes problems. (as well as capturing Hydrogen Alpha & Oiii panels to blend in sometime in the future )
Â
For anyone who is interested here are my settings:
Roughly 7 x 4 mosaic using dual cameras : ASI294MC Pro & Sigma 40mm F/1.4 at F/2.8 plus CentralDS modified Canon 6D & Sigma 85mm F/1.4 at F/2.8
All images per pane integrated with calibration frames (flats / dark flats / darks) and light pollution removed.
All panes then registered & integrated in mosaic mode with the following settings
APP version 2.0.0.beta13
10000_stars analysed
Quadrilaterals Scalestart 5 Scalestop stop 10Â Â Integration reference changed to a panel near the middle
Dynamic distortion on
Same camera and optics on
MBB 20 / LNC 2 iterations 5
Integration Scale 1.0  (1.6GB output TIF file ! )
Saved as 15% BG 3 sigma 2.5% base Adobe_RGB_1998
Star and starless layers separated in Photoshop using RC Astro StarXterminator
Noise removal via RC Astro NoiseXterminator
Â
Star reduction using RC Astro StarShrink
Â
  Â
