Details: Nikon D7000, Nikkor 180mm f2.8 at f2.8. 12.5 minutes (25 x 30 seconds) at iso 800. Using didymium filter. Stacked with Deep Sky Stacker and tracked with barn door tracker.
Also in the image is edge-on spiral galaxy Caldwell 23, 30 million light-years away in the constellation Andromeda (magnitude 10.8).