Bubble Nebula NGC7635

The Bubble Nebula (NGC7635) is seen here in a crop from my widefield image.

The entire region is part of a large macro cloud showing strong HII emissions. The Bubble itself is formed by the strong solar winds of a large star within the bubble. These winds apply a force against the surrounding dust & gases forming a bubble like structure.

Image Data: UHC filtered
Focal Length 500mm
Focal Ratio f4.0
Exposure 3hr 45mins