Beside the bubble sits the open star cluster of M52, the two forming a photogenic duo. The whole bubble nebula region is full of objects. The Lobster Claw nebula and NGC 7538 being the two most prominent, as seen in the full image below.
Image details: Modified Nikon D5500, Tamron-100-400mm-f4.5-6.3 @ 400mm/f6.3. Total of 32 minutes exposure time (16 x 120 seconds) at iso 1000. Tracked with unguided AstroTrac TT320X-AG. Stacked with Deep Sky Stacker. Edited with Photoshop and Starnet++