This globular cluster in Hercules doesn't get the love it deserves, due to its much more famous M13 big brother. But it has a great deal of interesting structure. It's also one of the oldest of the globulars, at least 12 billion years. Shot May 31-June 1, 2019.
Telescope: ES127ED apochromatic
Camera: ZWO ASI183MM Pro
Mount: CEM60
Total of 160 minutes with Optolong LRGB filters. Processed in PixInsight.