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