M52 and Bubble Nebula (NGC 7635)

m52bubble.jpg (193827 bytes)


M52 and Bubble Nebula (NGC 7635)


AP-130 at F/6 with Field Flattener.  AP 600 GoTo Mount with ST-4
Film & Exposure: Elite200 Slide, Two 35 min exposures
Location: My Driveway (Huntertown, IN),   Moderate Light Pollution
Date: Sept 13, 1999

Two 35 min images stacked in Picture Window blend mode

Scanned with SprintScan 35+
Levels and color adjusted in Photoshop
Stacked using Multipoint Feature of Picture Window; 20 points used
Enhancement of low level light area by Curves
Grain Reduction by 25% Light Mask  Gaussian Blur of 2R + 35 Threshold
Red Halos reduced by Circle Marquee/10R Feather/Red Level 40% Reduction

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