Jim Burnell's CCD Images - M23
 
M23
Object: M23 (NGC6494)
Open Cluster
 Const.: Sagittarius
Camera: HX916 Scope: AP130 Mount: AP1200GTO
Filter(s): IR block Exposure: 12x20s blank
The open cluster M23 in Sagittarius. A stack of 12 twenty second exposures using a 5" f/6 refractor. The image was calibrated, defect corrected and stacked using AIP4WIN.