Barnard's Loop - Orion Region Hα (Hydrogen Alpha Spectrum)9 x 25s ISO 1600, 350D Modified, Manfrotto tripod
Constellation Orion, Belt and sword. B33 is clearly visible as well as M42 & M43, Upper left shows Rosette Nebula and internal cluster. Hα data showed up in post editing, loop was barely visible in the stack. CS4 pulled it out. The lower right lobe is well pronounced. Not bad for ~4 minutes.