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 Everyone,
I'm just getting my toes wet with Ha processing and I have a very shot I took of Crescent nebula with my WO + FR (380mm). The shot is just 15min. (3 x 5min) from Portland, downtown.
Here is a link to the folder where I have my MF, MB and MD for Ha filter. If you spot anything wrong, please let me know. The flats were created at 22K ADU with my QHY9M CCD camera:
Dropbox File (Private or Invalid)
Also, I'm attaching what I see in APP with my integration. It's just a black background with some white dots (stars).
I'm assume I don't see any gradients or contrast because I don't have any signal but if you think it's something else, please let me know. Finding the focusing point with the narrowband HA filter was a pain, but I think I'm focus, although it's hard to tell with narrowband filters.
And last, if you have any tips for Ha processing, please share. I tried to find a video tutorial on Ha processing but I could not narrow one down.
Best,
Miquel
I just looked at your single / combines.. 300 sec frames .. there is something seriously wrong with the bit dept or Gain values.
there is just not enough info from you to draw any kind of conclusions.
but your flats look good...
Mitch
Hi Mitch,
Thanks for your reply. You are correct about the gain values. I had a friend of mine who’s been doing Ha for years and told me that 3 subs of 5min. each is nowhere close to the amount of time I need to set for my sub-frames to have a signal that lifts from the left side on the histogram. He takes single 20min. subs. So, I will be spending a night at his backyard with my equipment when we have a clear night and do some longer subs and see if I can lift the signal above the black background.
Thanks for your help
Miquel
Being its a QHY9 mono , CCD, you need to shoot in the 600/1800 sec subs.
but dont underestimate 120 x 600 sec over 48 x 1800 subs . Something to think about.
its all about SNR.
Clear steady skies.
Mitch/ (Astrodude. ( youtube)
