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2022-05-29: APP 2.0.0-beta2 has been released !

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Download links per platform:

windows 2.0.0-beta2

macOS x86_64 2.0.0-beta2

macOS arm64 M1 2.0.0-beta2

Linux DEB 2.0.0-beta2

Linux RPM 2.0.0-beta2

Super-easy APP processing wins again


(@rickwayne)
Main Sequence Star Customer
Joined: 3 years ago
Posts: 53
Topic starter  

I managed to eke out almost four hours of narrowband data on the West Veil last night -- it positioned itself to slide right down the narrow arc of sky visible from my back yard. I was in bed asleep before 11:30!  This morning I took the data through bog-simple, default-everything one-click integration in APP, ran the channels through the light pollution tool, combined with HSO 2, calibrated background, and saved the result. Ran that through starnet++ to remove stars, ran the starless image through Topaz Denoise to denoise and sharpen a little, and then off to Photoshop. Still have a backfocus problem, leading to terrible stars in the corners of the original image (e.g., the lower right here). Still, I'm pretty happy.

I left the rig set up and am collecting data on the East Veil as I type. I completely forgot to try APP's star-reducer on last night's data, but will on the East Veil tomorrow.

West Veil combine RGB cbg St starless denoise

 Tech deets on Astrobin.


(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4826
 

That is looking really nice! Slightly grainy in the signal maybe, is that due to topaz maybe?


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(@rickwayne)
Main Sequence Star Customer
Joined: 3 years ago
Posts: 53
Topic starter  

Maybe? I tried to be super-gentle on the Topaz sliders. My 183 does tend to produce a lot of visible noise, some of which is visible even after integrating 4 hours of data. These are super-mega-blowups of the 52 Cyg region. From the left, the stretched output from APP, the output from starnet++ removal, and output  from Topaz. The last definitely loses a bit of detail-defining contrast, which I stretched back into  being in Photoshop, doubtless amplifying the remaining noise.

Screen Shot 2021 10 19 at 10.38.18 AM

 

This post was modified 8 months ago by Rick Wayne

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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4826
 

Nice analysis! In the middle I do see artefacts in the bright star, so maybe the settings in starnet need some adjustment?


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(@rickwayne)
Main Sequence Star Customer
Joined: 3 years ago
Posts: 53
Topic starter  

Probably. I'm running the command-line Python version, which doesn't exactly make it obvious, nor does it encourage experimentation.


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