NGC 7380 In Cepheus
H alpha - OIII - Blue

H-Alpha Image

O-III Image

Blue Image

Date: October, 6-13, 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
270 Min H-alpha (unbinned) on Luminance Channel (9 X 30 Minutes)
Median Average in Sets of 3, resultant sets Added
240 Min H-alpha (2X2) on Red Channel (8 X 30 Minutes), Median Averaged
180 Min OIII (2X2) on Green Channel (6 X 30 Minutes), Median Averaged
85 Min Blue (2X2) on Blue Channel (17 X 5 Minutes)
Gradient Reduction with Ron Wodaski's Plugin on OIII and Blue in MaxIM DL
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
O III Custom Scientific 500.7 / 3nm
Blue Filter from Standard SBIG RGB Filter Set