Astroart Forum

Hi Is it possible to extract Ha and OIII from a OSC image. Astro Pixel Processer and Siril has a dedicated function to do that. It seems it has to been done before debayering. Pixinsight don't have a special funktion to solve it. But it may be done with its pixelmath. How can this be done in Astroar...

Some times it helps to read the manual
I will try "coregister" but I gess it could be better to down scale by bin 2 first.

Hi'
Using same telescope but two different camera. One with 12MP the other 24,1MP
Sensor size same crop. I gess FOV must be near the same.
But can I stack them in any way.
Maybe by using preprocess > extra > resize ?
Stack one as usual and the other with resize. Combine later on ?
Or how to do it

Thank's Fabio
That was unknown to me, but exactly what i was looking for.

I have here 3 photo all taken with 120 sec. From left to right ISO 100, 200 & 400 Raw loaded and auto stretch. The goal is to find the noise sweet spot. But how du I measure the stretch. I have been trying to measure the stars level, they should be equal, but that's not easy. Screenshot Auto stretch...

Jep, and as I wrote :
There are a normalization sigma clipping i dont think thats the same, as in PI, DSS or Siril ?
And it's listed as a new features in AA8
https://www.msb-astroart.com/example5.htm

Thank's Dunmunro
I already have & use AA8. But i don't find sigma clipping.
Only sigma and sigma + sum

Hi
Can AA8 combine with sigma clipping.
There are a normalization sigma clipping i dont think thats the same, as in PI, DSS or Siril ?

Oh, sorry Rudi. As soon I get home from my work :shock: The Macro is a little funny. I must be blind, can't find a command for copy and deleting file. So there are a lot of fussy workaround. If you know the syntax for copy or delete please share. Or if any can write it, some less confusing, let me k...

Another approach using a macro.

https://youtu.be/nwLST-FLPo0

Hi Fabio
Yes I downloaded the wrong version to.
Here is a working link https://sourceforge.net/projects/starnet/files/v2.0/
File name Starnetv2gui_win
And yes it Come with a small GUI maybe a command line Come later ?. There is a plugin for PI i think in Java script

Starnet V2 is out now. Better removal funktion.
Dont know if AA8 will be updated with the plugin.
https://remoteastrophotography.com/2022 ... 2-released