M38 is a big and beautiful cluster nestled in the middle of Auriga. Seen here at the top left of the shot, along with M36 and the flaming star nebula. The smaller cluster of NGC 1907 can also be seen just beside M38.
Details: Nikon D7000, Nikkor 180mm f2.8 at f2.8. 50 minutes (50 x 60 seconds) at iso 800. Using didymium filter and softon filter. Stacked with Deep Sky Stacker and tracked with barn door tracker.