A summer target often overlooked, M92 is a globular cluster in Hercules. The structure is estimated to be 14 billion years old, in other words almost as old as the Universe! Composed of around 250,000 stars and only around 100 light years across. I took this on June 2nd 2017 from St Austell.
20x300sec. light frames Calibration, stacking and most processing in PixInsight Final processing in Photoshop to create the high dynamic range image.