Astrometry.net job: 3926504
RA center: 2h 21' 10"
DEC center: +57° 6' 36"
Pixel scale: 2.881 arcsec/pixel
Orientation: 0.061 degrees
Field radius: 2.250 degrees
Resolution: 4683x3115
Data source: Backyard
This is an older image re-posted for the first time since it was lost in the crash. I simply followed Fabian Neyer's good idea of looking for the relic radiation (if that's what it is) from the clusters' formation. I think that you can, if you try, find some evidence for a Rosette-like bubble blown by radiation pressure from the hot stars but I wouldn't call it conclusive...
21 hours all in, LRGB and Ha, using both Tak FSQ106 and TEC 140 data from Les Granges, as usual, in SE France.
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