M42 Great Orion Nebula in SHO

December 27, 2025

  • Scope: SVBony ED70 F6
  • Camera: ZWO ASI183MM
  • Filters: Optolong Sii Oiii Ha
  • Bin 1×1
  • Reducer: None
  • Focuser: Manual
  • Mount: ZWO AM3
  • Guiding: ASI224 on 30F4 scope
  • Images: 9 x Sii 8 x Oiii 8 x Ha@300 seconds
  • Exposure: 300s x 25 = 125 Minutes
  • Processing: Stacked & processed with Affinity2
  • Notes: One of my first images using Narrow Band filtering. In this case the Optolong 6.5nm SHO filter set. Sulpher (Sii), Oxyger (Oiii), Hydrogen Alpha (Ha)