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M13 Great Cluster in Hercules

M13 Great Cluster in Hercules

I have been trying various ways to get good quality astrophotos from my very light-polluted back yard in Ottawa. Interesting to see that it is possible if you take LOTS of exposures. I was also interested to see that in this image I have captured quot;The Propellor,quot; a faint but distinct three-lobed shadow in the lower left of the cluster.br/ Date: 2022-08-12br/ Location: Carlington, Ottawa, ONbr/ Equipment: Z73 + ZWO ASI178MCbr/ Settings: 10s, gain 270, stack of 210 lights, 60 darks, 50 flats, 50 dark flatsbr/ Processing: PixInsight for stacking, background adjustment, levels and colour, final adjustments in Photoshop Elements.
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