This is a widefield shot of NGC 6543. I took this almost as a demonstration of the sensitivity of the SC3 modified toucam webcams. This is not using long exposures! Only 1/25th of a second. Almost like taking an image of a planet. Perhaps that is why they call it a planetary nebula! ;-)
There is a curious glow down one side. This might mean I need to twiddle with the Amp off bias or it could just be moonlight leaking in.
From the same night:
2x Barlow shot
Captured in k3, stacked in registax and curves in photoshop.
Exposure Details :
600x0.04s on 200mm @ F5 with SC3.5
Curdridge Observatory, Southampton,UK