IC4685 Emission/Reflection Nebula in Sagittarius, in Colour Mapped Narrowband
The view also includes NGC6559, IC1275 and IC1274.
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. 50 hrs Total exposure time.
Mapped as Ha Ha OIII
Ha 31hrs, 40min subs bin1. OIII 19hrs, 40min subs bin2