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added to RFC list ;-)

Median is with more than 10 frames alwyas inferior to average stacking Vincent, so I would suggest only to use median with just a couple of frames. Have you applied bias or darks, or a BPM in calibration?

Why use no normalization? Normalization is actually an essential part of stacking. Or did you mean bacgkround neturalization? If you are…[Read more]

Rob, if you select a slider, you can easily fine tune with the arrow keys on your keyboard.

The sliders in the menus on the left are auto apply. In the preview window not. But I can enable this with a listener, my first goal is to enable GPU processing for the preview filter, so it will work much faster. And then enable auto apply.

Detoxing from PI 🙂 …

Indeed, I forgot, I can always adjust my boxes after the first background calibration.

Thanks for your explanation.

So that didn’t make much difference in the stars, but I tweaked a bit with using median instead of average, no background normalization etc and although it’s difficult to see, the background is better in this one. Also nice to have a bit of extra vignetting correction, the flats didn’t fully correct that. I do seem to have some pattern in the…[Read more]

I am making a linux mint 17.1 KDE 64bit virtual machine now, and will work on your problem with installation as well.

I find it difficult to work with the sliders. Some needs very slight adjustment and it would be handy if an auto apply would be done once a slider is released…

““we will not stack 1 frame” error (same as Rob reported)”

Set the images to stack slider al the way to the right, this is a quality slider for the images that you will stack. Default now is 80%, and with two frame, it will only select 1 at the moment.

“Loaded frame 3, star analyser, crash.”

So now the star analyser works with 2 frames, but not…[Read more]

Looks good Rob, seems you like working with APP?

Combined for experimentation purposes with data taken last year with the ATIK 383L+

total 33x 900 sec. Ha:combined_Barnard33_Ha_stretched

Hi Rob,

At the top of the 6) integrate panel, you’ll see

Light to stack 1 of 2

probaby, set the slider below this all the way to the right, to stack all frames. I will set this to 100% by default.

APP gives a quality estimate of your frames, and that quality is used to determine which frames are the best in stacking. Using the slider, you can…[Read more]

Installed 1.033.4 8GB on the vaio:  2 CR2 frames loaded, star analyser works, step 6 stack, “we will not stack 1 frame” error (same as Rob reported). Loaded frame 3, star analyser, crash.

No I didn’t, I noticed slightly distorted stars indeed so let’s try that..

I know, but that didn’t stop me :-) from trying …

Nice, have your registered with distortion correction? This is really usefull with your optics.

Hi Yves, the no registration mode is to be set in

4) Register, registration mode: no registration.

APP is unlike PI, it is setup to do all steps

2) to 6) all in one go. So Registration is always a logical part of a stack process. If you have registered the data already, you want to use no registration mode.

My logic: if you don’t implement it…[Read more]