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Bill | all galleries >> astronomy >> astro_images >> Galaxies >> 2012 > M101 RGB
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4/5/2013

M101 RGB

The Cottage Observatory

Target: M101 (RGB/SBIG ST-8300M)
Imaging Scope: Astro-Tech 8" Imaging Newtonian w/Baader Coma Corrector @ prime focus
Mount: Celestron CGE Pro
Imager: SBIG ST-8300M @ -10C below ambient w/Hutech IDAS filter
Guiding: 2 second guide exposures using a SSAG through a Stellarvue SV66ED
Software: acquisition - MaxIm DL 5, processing - CCDSoft & Adobe Photoshop
Exposure Information: 18 x 5 minutes binned at 1x1 using a Baader Red filter.
18 x 5 minutes binned at 1x1 using a Baader Blue filter. 14 x 5 minutes binned at
1x1 using a Baader Green filter. All exposures were dithered.
Dark and Flats applied.
Comments: Pretty transparent skies. It was pretty windy.

SBIG ST-8300M,Astro-Tech 8 Inch Imaging Newtonian

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waterfalls man07-Apr-2013 02:29
Excellent Shot V!!