A faint, open cluster in Cassiopeia. This was the subject of the Scoping the Sky column in the September/October 2014 issue of SkyNews, entitled The Finest Cluster You Can Hardly See. The cluster is fairly evolved and contains quite a lot of red giants. A stack of nine 30 second exposures @ ISO-1600, Canon T3i on 8 inch f/3.9 Newtonian Astrograph.
NGC 7789 Image created: Sep 25, 2014
Image posted: Oct 7, 2014