M101 LRGB  (North Left)   (~40% Resized -> 1,464K )
M101 Full Scale Crop  (North Top)   (~60% Crop -> 988K )
*   *     Technical Data     *   *
Date 03-17-2008
Exposure 8hrs, LRGB 2hrs ea. Bin-1.
Optics 1995 AP155EDFS #95, f:7.26, FL=1126
Mount 2007 AP1200 GTOCP3 #714
Camera 2005 SBIG STL-11000M, 1.65 arc.sec p/pixel @ -20C, AstroDon I-Series HaRGB.
Guider 2006 SBIG STL-Remote w/Red filter, TAK FS-78, FL-632mm f:8.1.
Equipment AP Field Flatener, FeatherTouch FTF-3545 & Digital MicroFocuser, PreciseParts Adapters.
Custom built Water Cooling and DryAir Purge Systems
Processing MaximDL/CCD w/Russ Crowman's Sigma Combine Plug-In, PhotoshopCS2,  FITSplug by Eddie Trimarchi, AstroActions by Noel Carboni
Location StarFields Observatory (SFO), Chiefland Astronomy Village, Florida,   29d 24m 26.34s  North,   82h 51m 31.26s   West
Comments ... Hard to process, Gradients, finally got color balance decent.
... Oval Gx NGC4585 at tlower left apears to have a dust lane 90o to its Major Axis. Zoom in large image to 150%.
... Several other Gx show good details.

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