The Iris Nebula orNGC 7023 and Caldwell 4 is a bright reflection nebula in the constellation Cepheus. Distance 1,300 ly Take:Takahashi 102 tsa ,Atik ic 16 HR,l,ha,g,b,exp:18,15,15,21 min Mount EQ6 pro EQMODE,guiding:Meade DSI,Skywatcher 80 equinox PHD,Pros.Maxin dl,Photoshop cs3