SH2-153 (Sharpless 153 ) SH2-153 is the larger of the two nebulae seen in this image, SH2-152 is the smaller of the two. Through a large telescope fine structure and detail can be revealed. The nebula does very well with the hydrogen-alpha filter but is weak with the standard color RGB although it is mostly red. A wider field setup can also capture nebula that is not part of SH2-152 and SH2-153 but has some nice details that show up with the H-Alpha filter. For a complete list of the Sharpless Catalog visit my main site at http://www.sharplesscatalog.com