Detail of the Pelican Nebula in narrowband. This shows the advancing front between the strong H2 emissions on those of Sulfer 2 and Oxygen 3. Its always interesting to show the extending finger of gas with the two emitting jets at its tip commonly called the Herbig-Haro object 555.
This is an up-close image of IC 443. It is the RGB image enhanced with data from the H-alpha image.