A wide field image of the region between Delta Cas (Ruchbah) and Epsilon Cas (Segin) rich with open clusters. From left to right: IC 166, NGC 654, NGC 663, NGC 659, TR 1, NGC 581(M103). In addition, three fainter clusters are framed: Cz 5, Be 6, and Cz 4.

NGC 663 and NGC 581 – September 14, 2007
Constellation: Cassiopeia
Location: DAO, old 16” site.
Optics: Borg 77EDII at f/4.3
Camera: Canon 20Da on Kenko SkyMemo.
Exposures: 80 light frames of 60 sec, ISO 800. 1 hr 20 min.
Process: Calibrated with 30 dark frames and 30 flat frames in ImagesPlus. Combined using MinMax Excluded. Colour balance in Photoshop.