NGC 7635 is a HII region emission nebula. Discovered by William Herschel in 1787. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. The open cluster M52 is seen nearby.

Observation Date: 10-07-2022

Scope: Horizon 72ED 432mm.

Camera: ASI533 MC Pro.

Mount: iEXOS-100 PMC8.

Control: ASIAir Pro.

Filter: Altair Quad Band

Exposure: 45 x 180s. Guided.

Processed & Annotated: APP, Pixinsight