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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 itĀ  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.

 

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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

Dear astro-friends,

I trust your are all doing well. Please allow me to open this new topic regarding an issue that I have been experiencing and which I am still unable to find a proper answer. I would be grateful if you could help.Ā 

When the overall stacking process is over, I have no image. I am using lights, flat, dark flat, and dark. Despite double-clicking, nothing happened. In addition, it's like the histogram at the top right is "empty".

It might be culprits are my calibration frame. I ve tried to integrate only Flat and Dark flat = same issue. Did the same with only Darks = same issue. I am unable to explain what's going on. I didn't change anything in my process.

FYI, by loading only lights in the system = it's work, there is an image.... 🤔 🤔

Can someone share his experience ?Ā 

I thank yo in advance for your kind support.

Regards,

Aygen



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

We're here to help so thanks for the question! Can you also try integrating with just the darks?



   
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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

Dear Vincent,

Thank you for your kind support. I just tried again only with darks - same results - no image after integration. I am a bit lost to be honest. As for the darks, they are of the same exposure, t-degree, etc. than my lights. What shall I do ?Ā 

Ā 



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

Oops sorry, I meant without any calibration data, so no darks. šŸ™‚ Or did you test that already, given the last sentence of your original question? If so, then there is an issue with the darks most likely. You can upload some darks and lights to us if you want;

Go to https://upload.astropixelprocessor.com and use upload1 as username and upload1 asĀ password.

Create a directory named ā€œrkas12-darksproblemā€ and upload in there. Thank you!



   
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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

Was my first step. Without calibration I do have an image, as mentioned in my first reply.Ā 

Since I haven't moved / touched my equipment - I will redo my F, DF, and D. But honestly I don't know what went "sought".Ā 

I will keep this thread updated.Ā 



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

If you upload your darks with some lights, I can probably tell what is going on. But if you're not able to, check your offset for instance. The offset shouldn't be very low (or 0, which sometimes happens).



   
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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

I can upload my files if you want - with pleasure. How shall I do ?



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

If you scroll up 3 messages, you'll find the information I provided. šŸ˜‰



   
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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

@vincent-mod

My bad :). However, when entering the upload1 and upload1, getting an "error"....arff



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

So you go to the address, it has a login screen and you enter upload1 as both the username and the password. It works here at least so the server is ok.



   
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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

@vincent-mod

All good - it working.

Just uploaded the files.

Thank you for any help...

Below is the integration lights without calibration... not too bad though.

NGC 7000 Cygnus

Ā 


This post was modified 5 years ago 2 times by Aygen Erkaslan

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

Exellent, I'll have a look at them today.



   
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(@rkas12)
Brown Dwarf
Joined: 5 years ago
Posts: 7
Topic starter  

Update : just try the integration process once again with freshly new taken dark (same exposure etc. etc.). Integration now shows an image while before it did not 😫 . Also, what could be the reason for the stacked image to be of different color while using dark and not ? In my very example colors are being showed differently before and after using new freshly done dark.

Thanks or your reply.

Ā 


This post was modified 5 years ago 2 times by Aygen Erkaslan

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

Sorry, missed your reply. So you solved it with new darks? Yes, that happens sometimes and it's a bit of a mystery as to why. Usually it's just a setting that was missed in the not working ones, without being obvious.



   
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