I see so many excellent high res NGC253 here, Marcuses especially. So the only way to be different methinks, not being able to come close to the optical res of others due to a lack of appature (well, thats my excuse), is to overprocess. Its my comfort blanket.
Click here for big.
Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
Processed with CCDstack, Star Tools, Noel Gabani Actions and Photoshop. 12 hrs Total exposure time..