The Eagle nebula (click here for big). Part of M16 in colour mapped Narrow Band. Most of the stars have been deleted.
Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
16hrs of 3nm Ha, 40 min subs bin1, 3 hrs each of 3 nm SII and OIII 20min subs bin2.
Processed with CCDstack, Star Tools and Photoshop.
Ive had a few goes at this over the years, each time a bit more data and a bit less overt over processing
.