SH2-248 (Jellyfish Nebula ) This nebula is commonly imaged with both a wide field of view and deep sky imaging on the brightest part of the nebula. It is known more as IC 443 or by the common name of Jellyfish Nebula. All the narrowband filters work great with this one although you will get best results if your field of view mainly displays the brightest part of SH2-248. I tried the He II on this, and it did work, but I would suggest using the classical narrowband images, SII, HA, and OIII. It is easy to create a HA-RGB image, but you should shoot the RGB long enough to colorize the hydrogen-alpha. You do not need to use any narrowband filters to create a great LRGB image of this object. If you have a wide enough field of view, you can capture IC 443 and IC 444 in the same image. A larger telescope using a larger format camera can capture a very high contrast black and white image using an H-Alpha filter. There is a lot of structure and fine detail that would pick up very well with that kind of system. For a complete list of the Sharpless Catalog visit my main site at http://www.sharplesscatalog.com