I began at about 03:50. The transparency was excellent: lots of stars were visible. The seeing remained good until about 05:00 after which it began to deteriorate. This image was taken at 04:22.
Tecnical Details: Celestron C11 XLT on CGX Mount, 2x nominal (2.14x actual) Barlow. ZWO ASI290MC camera, 3000 frames @ 6ms (1/166.7s) captured by SharpCap 3.2, Processed in Regstax 6, about 80 frames in final stack. Total exposure time c. 18s.