Atik Cameras

Author Topic: The Barnard 343 area  (Read 4332 times)

orion58

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The Barnard 343 area
« on: September 13, 2014, 01:23:10 am »
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.