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First Orion Nebula of the winter


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After weeks of cloud, we finally had a clear night in Chester yesterday. 

I managed around 45 mins on the Orion Nebula (30 second exposures, gain of 150 on ZWO 071 MC Pro camera, cooled to -5C) with my William Optics 81 GT IV telescope, with 1x flattener and UV/IR cut filter used. Stacking was in DSS, and some further processing was done in Nebulosity. I finally got a decent image of the "running man".

This was also the first time I took flats using a light panel, and it seemed to work fine - just set Auto on the ASI Air Pro, and it came out around 50 ms exposure time. 

M42 version 2 15th Dec 2021.jpg

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