astroenthusiast 279 Posted July 17, 2021 Messier 13, the Great Globular cluster in Hercules was captured using 85 minutes of exposure time. The galaxy NGC 6205 is also present in the image, located to the upper right. See if you can find the distant spiral galaxy IC 4617 (barely visible), just to the right of M13. The optical system used was the Explore Scientific ED 165 mm APO Airspace Triplet refractor and the ZWO ASI2600 CMOS color camera. The image was processed with Astro Pixel Processor, using light, flat, dark, and bias calibrated frames. 1 Link to comment
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