Messier 37 is a large open cluster found in the constellation of Auriga. It has an apparent magnitude of 6.2 and covers about 24 arc-minutes of sky, the distance from Earth is about 4,500 light-years.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, 9 minutes total integration time with at ISO 3200, Image Date: February 5, 2018. Location: The Dark Side Observatory in Weatherly, PA.