Hi Chris. Early days yet. Still more data to get and improve on the technique.
Addressing the other issue. I stand corrected - short term memory loss assw aging
- images were taken 29th Dec, 1st and 2nd Jan.
I audited the image collection - there are over 200 in the set with different exposure times - selecting images at random from each subset and did not find the 'artefacts' in the images shown in post 1. I then viewed each subset integration and found no anomolies. I think this is a processing artefact.
EDIT: Looking at the first nights image, there is no evidence of the artefact. It seems to have been introduced when integrating the images from the second and third night with those of the first.