NGC 7635 - the Bubble Nebula is a ghostly emission nebula in the constellation Cassiopeia. It is approximately 10,000 light years away from us.

Details:-
Date: 2009.08-23
Location: Victoria Centre Observatory, Observatory Hill, Victoria, BC, Canada.
Equipment: Modifiec Canon T1i prime focus on a Meade 14" SCT operating at f/10 mounted on a Paramount ME, autoguided by an Orion StarShoot Guider and PHD guiding software
Exposures: 23 - 4 min. light and 12 - 4 min. dark frames at ISO 1600.
Conditions: Clear and 16 deg. C.