DWB 111 – The Propeller Nebula

The Propeller Nebula is most known as DWB 111, but is a combination of DWB 111 & DWB 119 and even found as Simeis 57

Ra 20h 16m / Dec +43° 40′

This SHO image is a stack of 40:40:40 frames of 600 sec each using a Baader H-alpha 7nm, Astrodon OIII 3nm and an Astrodon SII 3nm filter

Camera: Atik 460ex mono
Telescope: Canon EF 200mm F2.8L II USM @ F2.8