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Astrodude

© 2004 - 2008 Astrodude
M1 - Crab Nebula
M1 - Crab Nebula
CLICK THE IMAGE FOR FULL RESOLUTION
Date: November 2008
SBIG ST2000XM w/CFW-8a
Astrodon Series I RGB filters and Astrodon 6nm Ha filter
Takahashi FSQ-106n
Astro-Physics AP900GTO cp2 mount

Filter Data:
Luminance = 120 minutes
Red = 30 minutes
Green = 30 minutes
Blue = 30 minutes
Hydrogen Alpha = 180 minutes
180 second sub-exposures for Luminance and Color Channels
600 second sub-exposures for Hydrogen Alpha
autoguided by the integrated guider

Total exposure time 390 minutes (over 6 1/2 hours!)

Processing: Maxim DL and Photoshop CS3.