Hi Guys
Nebula NGC6357 in Colour Mapped Narrowband. 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. 24 hrs Total exposure time.
Ha, SII,Ha,OIII. Mapped as LRGB
Ha 13hrs, 40min subs bin1. SII 5hrs 40min subs bin2, OIII 6hrs 40min subs bin2.
Cheers
Fred