Barnard 343 is a dark nebula in the Gamma Cygni Nebula Complex. The image was taken with a William Optics Star71 and Atik 460ex. Color mapping = Red: Ha 76% / SII 24%, Blue: OIII, Green: OIII 85% / Ha 15%. All filters 3nm. Exposure Ha:OIII:SII 180m:150m:150m. Total exposure 8h 0m.