NGC7635 Bubble Nebula
The Bubble Nebula is 5 light years across and about 11,000 light years from Earth. The "bubble" is made of H2 gas shaped by steller wind from a star in it's center. Open cluster M52 is nearby, about 1/2 degree past the top-left of the image. North is at the top.

Scope/Mount: AstroTech AT8RC 8" F8 Ritchey-Chretien with ATFF2 Field Flattener, Celestron CI-700 Mount

Camera: Orion StarShoot Pro V2 one-shot color
Guiding: QHY5L-IIM through Orion Deluxe OAG, PHD guiding software
Exposure: (18) 10 min
Software: Nebulosity, PhotoShop CS2
Comment: 08-08-15, Tierra del Sol, CA, good conditions.