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M101 - Pinwheel Galaxy

2nd and possibly final colour version of M101. This image contains all the data from my previous process plus, another 2.5 hours of luminance shot with the IDAS light pollution filter in place. The IDAS makes a huge improvement in my LRGB subs and I would recommend trying one if you have urban light pollution like myself.

 

Imaging times;

 

Luminance 7.5 hours in 5 minute subs

RGB - 4.5 hours (total) in 5 minute subs

Total imaging time 12 hours.

 

Imaged with an Altair Astro 6" RC & Atik 314l+ processed in Pixinsight & CS5.

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Uploaded on April 16, 2013
Taken on April 16, 2013