Heres another bit of M16, the
Donut.
Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount.at itelescopes Siding Spring Observatory.
12hrs of 3nm Ha, 40 min subs bin1, 2.6 hrs each of 3 nm SII and OIII 20min subs bin2.
Processed with CCDstack, Star Tools and Photoshop.
Im not overly happy with this rendition, might redo, but you know, post or perish.
Cheers
Fred