The Bubble Nebula (NGC 7635) In H alpha, O III and Blue Light

HaRGB June 28, 2003 September 17-18 Hubble Mix (S II - H alpha - OIII) September 17-18, 2003 Ha - OIII - B July 12, 2003 September 17, 2003

Date: July 12, September, 17-18, 2003 Instrument: 155mm Astro-Physics f7 Starfire @f5.25 w/Astro-Physics 1200 Mount Imaged with SBIG ST2000XM Camera w/CFW8A Filter Wheel Exposure: HaRGB 60 Min H-alpha (2X2 binning) on Red Channel, 60 Min OIII (2X2 binning) on Green Channel, 10 Min Blue (2X2 binning) on Blue Channel 60 Min H-alpha (unbinned) for Luminance Channel Sharpened Using Richardson-Lucy Routine in CCD Soft Gradient Reduction with Ron Wodaski's Plugin on OIII image only in MaxIM DL All sets were taken with 10 minute sub-exposures Sub-Images Aligned and Combined in CCD Soft Color Combine in CCD Soft Slight Color Adjustment and Cropping in Picture Window Pro Curves applied to the Red and Green Channels in PhotoShop 7.0 Location: My Light Polluted Driveway in Mason, OH Guiding: 94 mm f7 Brandon with SBIG ST4 Filter Data: H Alpha Custom Scientific 656.3 / 4.5nm O III Custom Scientific 500.7 / 3nm Blue - Standard SBIG Filter Set Object Data: Visual Magnitude: 8.5 Distance From Earth: 7100 Light Years Size of Object: 6 Light Years Across