Rosette Nebula in Narrow Band Imaging. At 5,200 Light Years away in Space, is one of the Best known Nebulae in our Galaxy. It spans 60 Light Years across. I imaged this with Narrow Band Filters, Ha, Oiii & Sii. Each filter represents a Narrow Band of the color spectrum. Each filter only extracts the certain Narrow Band Gas that is released, then is processed into RGB Channels. With “NB” Narrow Band Imaging you then assign each filters output into a Red, Green or Blue Channel.
