Well done to Stefan on finishing and posting a remarkable image! (which we've been discussing briefly on the ASV list and in person).
The first time I had heard of these (possible) structures was many years ago from a mutual ASV colleague of ours Maurice Valimberti. More recently I had also seen some of Troy's images (as per alocky's link I think) before I gave it an attempt in December 2014. I tried a mosaic but was hampered by intense and highly variable airglow - the result certainly wasn't worth sharing. I did capture a wider single shot at the same time but only processed it last weekend after seeing Stefan's shot:
https://philhart.smugmug.com/DeepSky...xies/i-82Nvbqv
This is very roughly processed with some ugly processing artifacts, but to me it looks surprisingly similar in tone given the CCD/DSLR difference in capture.
Wide field in general is always hard to remove gradients from but it seems to be particularly bad when shooting south as that is where airglow is strongest and often most structured. By the time you image for several hours with the whole region rotating around SCP and one corner of the frame always being fairly low in the sky it makes for some pretty hard yards after the shoot.
Again nice work Stefan - quality not quantity is a good approach!
Phil
Still a great capture.
