Walking Noise - or not.

[Stub Mandrel]

Saturday night's subs, afflicted by the curse.

Previously this has been put down to walking noise (gradual drift of the images across the sensor) but I am convinced its caused by thin cloud.

Dithering is often suggested as a cure.

I am convinced it can't  drift as the first and last subs differ in position by only about a quarter of the length of the streaks.

I haven't seen it with the ASI1600 before, and whatever the cause it seems always to be associated with poor transparency.

Still the jury is out.

[geordie85]

My guess would be walking noise. There may o ly be a slight drift between your first and last sub, but your light pollution ect would have moved alot further during your imaging session