Sunday, October 13, 2013

NGC891 Sprial Galaxy 20131002


NGC 891 (also known as Caldwell 23) is an edge-on unbarred spiral galaxy (actually barred) about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784.  This image of NGC891 was taken at the 2013 Okie-Tex star party the evening of October 2, 2013.  The image was taken with an Orion Deep Sky Imager II Color.  The image is made up 14 ten minute sub-frames and 18 5 minute sub-frames for a total of 230 minutes.  Pre-processing and calibration was done in Nebulosity 3.  Photoshop CS5 was used for the final processing.

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