Bubble Nebula | William Warden

William Warden
Location of photo
Los Alamitos, CA
Date/Time of photo
Takahashi FS102, SX-AO @.2-.4 sec guider exposures, CS 10 nm HA filter-SX H9, IDAS LPR-H9C, G11 HA 14x20 min, RGB 32x20 min.
The Bubble Nebula in HA RGB. LPR and HA filters combined with extended exposure time (15 hours) were used to combat heavy suburban light pollution (Bortle white). The HA filtered images were used to enhance the nebula, tighten the stars, smooth the background, and eliminate light pollution.
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