Collinder 399

 Coathanger Cluster (also known as Collinder 399, Cr 399 or Al Sufi's Cluster) is a asterism of 10 stars. Six of the stars appear in an row, across 1.3° of the night sky. The cluster is in the south of the constellation Vulpecula, near the constellation Sagitta. Its nickname is the Coathanger. None of these ten stars are believed to be gravitationally bound to each other, thus they are not a star cluster, but is sometimes considered an open cluster.   This image consists of a total of 4hrs and 20min of exposure and is made up of a two panel mosaic.  This is made up of the following individual frames:

I took the images from my backyard observatory using an Astro-Tech AT130EDT telescope with a  focal length 910mm.  I used the ZWO ASI 294MM Pro camera and Antlia LRGB and Narrowband filters.   All process using PixInsight.