NGC 281
Hubble Mix (S II - H alpha - OIII)

RGB August 19-24

Ha - RGB August 19-24 September, 23, 2003

Hubble Mix (S II - H alpha - OIII) September 23-26, 2003

Ha - OIII - OIII September, 23-26, 2003

Ha - OIII - SII September 23-26, 2003

Date: September, 23-26, 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
120 Min SII (2X2 binning) on Red Channel, 120 Min H-alpha (unbinned) on Green Channel, 180 Min OIII (2X2 binning) on Blue Channel
120 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 30 minute sub-exposures
Sub-Images Aligned and Combined in CCD Soft
Color Combine in CCD Soft
Gamma Stretch in MaxIM DL
Cropping in Picture Window Pro
Curves applied in PhotoShop 7.0
Location: My Light Polluted Driveway in Mason, OH - 75 Feet From VERY Unshielded Mercury Vapor Lamp

Guiding:
94 mm f7 Brandon with SBIG ST4

Filter Data:
H Alpha Custom Scientific 656.3 / 4.5nm
S II Custom Scientific 672.4 / 4.5nm
O III Custom Scientific 500.7 / 3nm