The open clusters NGC 7790 and NGC 7788 (center) are the most prominent objects in this wide field view of a portion of the Milky Way in the constellation of Cassiopeia. However, there are six named open clusters in this field. Starting from the lower left –> Berkeley 58, NGC 7790, NGC 7788, Frolov 1 Harvard 21 and King 12.
This image was taken on the evening of September 11, 2018 and the morning of September 12, 2018 with a ZWO ASI1600MM-C camera attached to a Takahashi FSQ-106 telescope at the native f/5 focal length. The exposure times were 240 seconds for each of the red, green and blue filters [Baader 36mm unmounted]. A total of 21 x 240 second exposures were captured for each color filter.
Subexposure calibration, alignment and stacking was done using PixInsight. Post-processing image enhancement was done with PixInsight and Photoshop.
Click on the image below to see a slightly larger version. Follow this link for a full resolution version.
