M42 The Great Orion Nebula

Click on image to enlarge

Taken on October 1, 2002 from backyard in Castro Valley, Ca.

30 exposures of 60 seconds through Schuler Hydrogen Alpha filter (9nm)

25 each exposures of 30 seconds through Optec IR Blocking Luminance, Red, Green and Blue filters

LRGB combined using (Ha + Red + Luminance) for "L" (Ha + Red) for  "R", and using Green for "G" and Blue for "B"

AP155EDF f/7 imaging scope

FLI IMG1024S Dream Machine Imaging Camera @ -25C

TV101 guide scope

ST7E NABG guide camera

AP1200GTO mount

Optec TCF-S focuser

FLI CFW1 Filter wheel with Schuler 50mm Hydrogen Alpha (9nm bandwidth) filter and Optec IR-Blocking LRGB filters

Maxim DL 3.0.7 used for image capture, calibration and alignment, Focusmax used for focusing, Sigma Beta 10 used for darks, flats, stacking

Photoshop 7 used for touchup

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