Astroart Forum

Thank you Fabio.
At least I now know what it' does.
So I will continue be using Sigma+Sum for Light stacking.
In preprocess options > normalization > Images ADD Sigma 8
And take sigma down if there still are sattelite trails.

Hi' I did som test with Normalization in preprocess options Tab. Test done with OSC Camera Without any normalization I get : Sigma: Rejected pixels = 1.7 % Calculating SNR SNR = 49.05 db, R Preprocessing_Without SNR = 46.47 db, G Preprocessing_Without SNR = 48.89 db, B Preprocessing_Without With nor...

1) Try GraXpert

Oh, thank you Fabio

The F4 didn't work. I belive the FP in status bar means it is Floating Point
After Multiply by 65535 the FP value is changed in status bar.
And now it's perfect.

Hi' When process and save a fits in AA8 > Process in GraXpert save still in 32bit fits. The file seems corrupt both in AA8 and Siril. ( Can't use DDP correct ) The header from Graxpert ends with : BG-EXTR = 'GraXpert' CBG-1 = 4.3567798E-06 CBG-2 = 4.3567798E-06 CBG-3 = 4.3567798E-06 INTP-OPT= 'AI ' ...

Thank's Fabio
I'am back on track

Hi'
I haven't noticed this before.
After DDP and Deconvolution the whole pic fade out.
The pic show the two stat. before and after Decon.
What is going on ?
Both pic displayed as Min>Max :

Hi' Here are a little neet macro i use to place a picture the "right" way. It has to be plate solved first. ' *** AstroArt 8 *** ' *** 23:09:23 Morten Lerager *** ' The selected Image will be Fliped arccording to N/E ' A Choice to rotate the Image N up. ' ' Get two coordinate ra1,de1 = Image.RaDec(5...

Thanks Iver
I thought the function was only for translate pixel to RA DEC.
Heads up :l

Hi' Is there a script command for invoke the Tools > Plate solve command And setting the parameter. Search region or from image center. Horizontal field .... https://www.astroart-forum.net/forum/viewtopic.php?f=5&t=440&p=1722&hilit=script+plate+solve#p1725 "OK, the setting of the horizontal field wi...

Hi'
In the spring I was able to make a blink of the supernovae in M101.
Short after it was discovered !
The before pic was taken 21-04-2023
And the SN are from the 24-05-2023
Sorry, I don't know why the gif won't Blink

Thank you Bill
Your right. First select Copy > then do a Copy Paste as normal