Narrow band imaging (Hubble palette, CHFT and HalphaOII) Narrow band Imaging (Hubble and CHFT palettes) M42 in Orion FSQ 106 F5 SII, Halpha, OIII Mapped for RGB SII 8x15 min bin2x2 Halpha, 15x4 min bin 1x1 OIII 10x7 min bin 1x1 Click HERE to enlarge