MAY 4 2026: APP 2.0.0-beta44 has been released !
New improved internal memory controls should now work on all computers
May 1 2026: APP 2.0.0-beta43 has been released !
Improved internal memory controls (much more stable and faster on big datasets), fixed CPU image viewer, fixed Narrowband extraction demosaic algortihms.
Apr 29 2026 APP 2.0.0-beta42 has been released !
New improved Normalization engine, Fixed random crashes in integration, fixed RGB Combine & Calibrate Star Colors, fixed Narrowband extraction algorithms, new development platform with performance gains, bug fixes in the tools, etc...
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.
Hi all,
Christian Sasse, astronomer in charge at iTelescope.net shared this beautiful data set of Comet Leonard. It was shot with T56 from Australia.
It is RGB filter data and processing was very easy in APP 1.083.
I processed it in multi-channel mode, and the comet registration worked perfectly on the bright comet nucleus.
It gave me 4 integrations:
- Red
- Green
- Blue
- and I integrated all channels into another stack, so that is RGB combined to get a Luminance stack.
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With the RGB Combine Tool, I used formula LRGB2. Then removed the gradients with the Remove Light Pollution Tool and finally made a very nice stretch with APP's preview filter 🙂 Please click on the image to see the full resolution image.
Hope you like it!
Mabula
Really great picture, Mabula! Such detail. Appreciate the overview on the workflow. I used a more direct stacking workflow and then ran post-processing through Adobe Photoshop and Lightroom a few weeks back. This is a wide field view of C/2021 A1 from Suburban Maryland, just north of Washington DC taken using a RedCat 51 and a ASI2600MC-Pro. About 30 minutes of total integration time, 30 seconds per exposure.
~Clear skies!
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Thanks @cpear004 and you are most welcome !
Thanks for sharing your result as well, it is very nice 🙂
Mabula
I had a few Comet Leonard encounters - including one where I have stacked with the Comet Registration process from 1.083
Herein attached is One without the Comet Stacking (shows elongated Nucleus) - Slightly different processing in each, as the Comet registration also seemed to change the end result in overall colour data.
 These were from Green Point, Brighton, Vic - travelled down there on the night from our place in Ringwood East specifically to nab the beasty
Hi,
is it now possible to register on the comet AND the stars at the same time? So that in the finished stack the comet and the stars are sharp.
Ok, is that still coming? Would be really awesome 🙂
Here's a recent shot from last night. C/2017 K2 with IC 4665
@daniel_n Yes, it is on the TODO list for a future version but not for APP 2.0.0.
