NGC891 and Friends

NGC891 and friends

Telescope: 16″ f3.75 Dream Scope
Camera: FLI ML16803
Mount: ASA DDM85
Exposure: 13 hours (92x300s L + 3x20x300s RGB)
Date: October 2017
Location: Southern Alps, France

NGC891 (also known as Caldwell 23) is an edge-on unbarred spiral galaxy about 30 million light-years away in the constellation Andromeda. It was discovered by William Herschel on October 6, 1784. The galaxy is a member of the NGC1023 group of galaxies in the Local Supercluster. NGC891 looks as the Milky Way would look like when viewed edge-on and in fact both galaxies are considered very similar in terms of luminosity and size. This picture is a widefield view and clearly shows some of the members of AGC347.

Edit: Here’s a link to the inverted image with annotations of the PGC catalogue