Is this cheating?
Took 30 minutes of Lagoon with Mars. Stacked and discovered Mars does actually hoot a long. Obvious movement relative to the Lagoon.
So instead I added one frame over my previous Lagoon stack
high res
https://farm4.staticflickr.com/3939/...7862c109_b.jpgLagoon Nebula-Mars M8 NGC6523 by
Peter Ede, on Flickr