Strange artifact on ZWO 1600mm camera

[John K]

Hi guys,

Got a strange artifact on my ZWO 1600mm camera at my last imaging session.

Only visible on the Luminance and Green filter acquisitions, not visible in the Red or blue filters, and does not make a difference when if I stack darks or flats.

Anyone else come across an artifact like this before?

Clear skies.

John K.

[Imme]

Do all pixels report the same brightness value on single images?

[John K]

Strange thing is I cannot see the artifact in any of the raw images.

I am wondering if it is a result of stacking in Pixinsight.

Very strange!

[Atmos]

It looks like it could be a part of pixel rejection.

[John K]

Thanks Colin,

You may be right here - this is the defaults in Pixinsight.

It's the first time I have stacked with this latest version.

Wondering what I should be adjusting here?

John K.

[Imme]

Can't help with the settings but I agree re pixel rejection if they are not in the originals