M57 Ring Nebula in Lyra

8 min of exposure (16x30s) using a 5.5" Orion OMC-140 Maksutov Cassegrain and Nikon D90 at prime focus. ISO3200. HEQ-5 mount. Frames processed in DeepSkyStacker. Taken on the 4th October 2018. Image resized and cropped.

Done