The bright "egg" in this image is nebula Gum 85 in Serpens; surrounding it is Gum 84 and surrounding that is Sharpless 54.Sharpless 54 is a larger object as described in the catalog as a 140 arc minutes which extends well beyond this field.This area of sky is located just north of M16, the Eagle Nebula.
W.O FLT110 with dedicated TMB field flattener
FeatherTouch 3'' focuser
Starizona MicroTouch autofocuser
SBIG ST10XME CFW9 W.O ZS80 ED
Filters: 5nm Hα Astrodon
Sky-Watcher EQ6 Pro
Total exposure time:5h 50min