Narrow Band Sword of Orion in HDR

Orion is sinking into the west in the early evening now. I took the opportunity to capture a HDR version of the Sword of Orion with M42. Taken from Terlingua, Texas, at 2021-03-27 04:16 UT. William Optics RedCat 250/51 mm telescope, Optolong L-eNhance narrow band filter with Ha and Oiii, ZWO ASI 533MC camera cooled to -10C. 25 60" exposures and 40 120" exposures for 105' of total exposure.

Stacking and HDR composition in PixInsight. Noise reduction in Topaz DeNoise. Final crop and exposure in Photoshop.

Content created: 2021-04-05

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