Here is a timelapse of the sky the same night I was imaging the Cocoon Nebula.
It explains why so many exposures had to be rejected because of cloud :)
Timelapse is taken looking towards Tenterden during a 2.5 hour period. Canon 600D with Samyang 8mm lens at F5.6. Each frame is a 30sec exposure.
https://vimeo.com/281103970
Mark
It does look quite cloudy, I guess with your shorter subs (as opposed to my longer subs) you can get away with imaging on an intermittent cloudy night as you can grab 30 sec exposures between clouds. I seem to recall watching a large contrail pass over the sky when I was imaging NGC6914 and wondering whether I would finish my 600sec exposure before the contrail reached my target.
Well you did very well to get that image with all that cloud.
Nice time lapse.
Carole
Very nice - makes the planes look quite interesting.
I'm surprised you managed to image, but it opens up some possibilities.