Hi,
This image consists of 4 hours and 50 minutes taken with a Canon 6d (unmodified) with Canon 200mm f4 shot at 5 minute subs ISO 1600. Darks and flats applied.
Hi resolution image can be found here:
https://www.flickr.com/photos/134809...posted-public/
Mounted on top of my scope and tracked. I believe the green artifact might be due to reflection from having a UV filter attached to my lens.
Comments welcome.
Mark