M53. A pretty globular cluster in Coma berenices set against a nice background of colourful stars.
The bright star to the right is Diadem (with smaller binary companion).
Spiral galaxy UGC 8248 is visible in full image size to the right and below the top group of 3 stars.
Integration of 7 x 5 minute and 5 x 10 minute exposures (1hr 25 mins total)
480/80mm f6 refractor.1.0 x field flattener. Ioptron ZEQ25GT mount. Guided with Orion SSAG/PHD. Canon 60Da @ 800ISO. Post-processed in PixInsight 1.8 and Photoshop CS3.