Target: The Elephant Trunk Nebula - vdb 142 (HA-SynGreen-OIII/SBIG ST-8300M)
Imaging Scope: Astro-Tech 8" Imaging Newtonian w/Baader Coma Corrector @ prime focus
Mount: Orion Atlas EQ-G (EQMOD)
Imager: SBIG ST-8300M @ -10C below ambient w/Hutech IDAS filter
Guiding: 1 second guide exposures using a SSAG through a Stellarvue SV66ED
Software: acquisition - MaxIm DL 5, processing - CCDSoft 5, AstroArt & Adobe Photoshop
Exposure Information: 24 x 10 minutes binned at 1x1 using a Baader 7nm Ha filter.
24 x 10 minutes binned at 1x1 for OIII, SynGreen - 20% Ha & 80% OIII.
8 Hours total exposure time. Mapped Red = HA, Green = SynG (Ha+OIII), Blue = OIII.
All exposures were dithered. Darks and Flats applied.
Comments: Ha shot on 9/10, 9/11 & 9/13/2012
OIII shot on 9/11, 9/12 & 9/13/2012. Baader filters used.