NGC 891
NGC 891 (C23) is a type-Sb, spiral galaxy, seen edge-on, in the constellation Andromeda. It is estimated to be at a distance of 31 million light years. More information and additional images of this galaxy can be found at the NGC Index - NGC 891, the Astronomy Picture of the Day and Wikipedia - NGC891.
The above image is a 112-minute exposure obtained on 10 October 2008 from 62, 2-minute subexposures. The galaxy was imaged through a William Optics FLT110 4.3" f/7 refractor with an SXV-H9 CCD camera. Click on the above image to see the full field.
Also note the numerous small spiral galaxies throughout the surrounding field. These include PGC 2194768 (left center) and PGC 9101 (right center) shown below as a zoomed crop from the full field image.
Below is another cropped area of the full field that includes PGC 9042 (top center) and PGC 2192261 (bottom center).
The above image is a 19.5-minute composite from 78, 15-second exposures taken on 11 September 1999 using a 16" f/4.5 Meade reflector and a self-built CB245 Cookbook CCD camera.
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