Optics/mount : 12″ACF 2.7m AP-Reduzer Alt-5 Camera/filters: Atik 11002 AstrodonHa/OIII/SII Exposure:20×600 Ha / OIII / SII all 2bin 12 october 2017 NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the […]
