Stacking Issue

SFhsRlCS

Dear All,

please help I do not know what I am doing wrong. When I finish stacking almost black image comes out. No adjustment helps. It worked fine on some DSO such as C33 and C34. But when I want to stack M31 it is not working. The image is black. I use ASI 294MC PRO. I do not know what to do.

Thank you.

Kind regards,

Martin

Tech@ZWO

SFhsRlCS Could you send some fits files for analysis?
You can share them via google drive or other cloud drive if they are too large. thanks.

johnpd

What are you using to stack the images? ASIDeepStack?
Have you looked at the light .FITS files? Are they OK? You can use ASIFitsView to peruse them.
What calibration files are you using: darks, flats, bias, etc.

JohnD

SFhsRlCS

johnpd

Yes, I use ASIDeepStack.
Yes, all are ok.
I use darks, flats and biases. I have notice, that if I do not use darks, the stacking works. Unfortunately I have ASI 294MC PRO so amp glow is in the image.

johnpd

What version of ASIDeepStack are you using?
I found two posts indicating a similar problem. They were using a Mac computer to do the stacking. Are you using a Mac?

JohnD

SFhsRlCS

johnpd

I use 1.9.1.
Unfortunately not. I use common laptop with W11 :/

SFhsRlCS

@"Tech@ZWO"
https://drive.google.com/drive/folders/13kpXKHLMD54K6V8tE2_8pX2b2Q4cZjv3?usp=drive_link

Tech@ZWO

SFhsRlCS I tried the images you sent, work fine.
Did you check all frames if there are some bad images? some bad images may cause a problem like this, and our devs are working on it now.

Could you stack only the eight frames you sent?

SFhsRlCS

Tech@ZWO So finally I found it. It was one wrong dark image. It was totally white. How can this happen? Thank you for paying attention.