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M92 (NGC 6341), globular cluster type IV, in Hercules. Taken May 16, 2008 with a DSI Pro II and Outback Cooler, on a C8NGT (8" Newtonian f5) and an ASGT mount. RGB subframes were 1 minute resulting in the following total exposures R:G:B (min) = 56:57:56 (min). Color balance was achieved via numerically scaled channels. The RGB channels were also used to create a synthetic Luminosity channel for processing. Captured with Envisage, calibrated and sigma combined in Iris with other processing using FITZ, PixInsight LE and Photoshop CS. North is up.
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