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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.

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.

 

Andromeda...

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(@suparnob)
White Dwarf
Joined: 9 years ago
Posts: 7
Topic starter  

My learning continues. This is Andromeda -- essentially my second astrophotograph. Taken from my backyard in DC (bortle 8/9). I need to do better at removing light pollution.

Taken with a William Optics Redcat and ZWO ASI294MC Pro OSC, Takahashi PM-1X mount. 15X4 minutes each.

2019 Andromeda 1 PI

 



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

That's fantastic for a second photo! Did you use any calibration files?



   
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(@suparnob)
White Dwarf
Joined: 9 years ago
Posts: 7
Topic starter  

Many thanks, Vincent! I did use some calibration files -- 30 each of bias, darks and flats. I suspect that my flats did not come out too well because when I stretch an individual flat (or the master flat), I do not see any gradation in the image, etc. I find it hard to believe that the scope has zero vignetting. I need to learn how to take proper flats. The darks, on the other hand, show an amp glow very clearly. 



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Excellent, so when you think one of your calibration files is wrong, it's better to leave it out as it may have a bad influence on the endresult. Some more bias frames might also be helpful, as they're easy to make about a 100 is advised. But, really good start!



   
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(@suparnob)
White Dwarf
Joined: 9 years ago
Posts: 7
Topic starter  

Thanks! Great advice and good to know... I should reprocess the image without the flats and see if it makes a difference (and also, increase the number of bias frames).



   
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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

Yeah you will quickly see if it's better with or without, good luck!



   
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