A couple of planetary nebulae, Heckathorn-Fesen-Gull 1 at lower left and Abell 6 at top right. The star that created HFG1 is V664 Cas, a binary star that's moving through the interstellar medium quite quickly. This motion is causing the blue shock front at lower right and leaving the red trail.
Captured at SRO, Aug-Dec, 2017
Scope: Ceravolo C300 @ f/4.9 = 1470mm FL
Mount: AP1100
Camera: FLI PL16803
Filters: Astrodon
Guiding: Lodestar II / Tak guide scope
Image scale: 1.26 arcsec/pixel (Drizzled to double res)
Exposures: 19x300s R, 20x300s G, 22x300s B, 50x1800s Ha, 49x1800s Oiii (~55 hours)
Processing: PixInsight 1.8.5
Processing credit: Rick Stevenson
Acquisition credit: Scott Johnson, Augusto Hernandez, John Kasianowicz, Daniele Malleo, Jose Mtanous and Rick Stevenson
Bigger version here:
https://www.astrobin.com/full/332194/B/