Hi Guys
Nebulae NGC2014 and NGC2020 in Colour Mapped Narrowband.
Click here for Big.
NGC2020 is to the left. In contrast to NGC 2014, the bluish hue is the work of one single, massive, unstable star called a Wolf-Rayet star.
Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory in very dark skies.
Processed with CCDstack, Star Tools and Photoshop.
All filters 3nm 40min subs total 72hrs exposure time.
Not usually imaged in full NB, Ha RGB is more common, and probably smarter, SII was a bit difficult.