Combination of 15, 1 minute images unfiltered. SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.
NGC 7243 is a very large and scattered open cluster in Lacerta. Due to its large size, only the central portions of the cluster are visible in the above image. Several small and faint galaxies are also visible.