This work is a continuation of my interest in objects from the Stewart Sharpless catalog that do not emiting in the Ha. In previous years I photographed Sh2-73, Sh2-63, Sh2-33 and Sh2-36. This time I took care of Sh2-23 and 24, at the same time testing the new setup with the ASI 2600 MM Pro CMOS camera on such a dark, difficult object. In my opinion, the test turned out quite well.

