Hi Guys
NGC346 in NB. This Nebula has a huge dynamic range, the young central star forming region is very bright, but the surrounding Nebula is quite dim in comparison, so it was a challenge to process.
Big
here.
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 and Photoshop. 43 hrs Total exposure time.
Ha, SII,Ha,OIII. Mapped as Lum, yellow, red, Blue
Ha 27hrs, 40min subs bin1. SII 10hrs 40min subs bin2, OIII 15hrs 40min subs bin2.