NGC 6939 is an open star cluster located in the constellation Cepheus, about 3860 LJ away and reaches its annual culmination at astronomical midnight end of July.

NGC 6939 is an open star cluster located in the constellation Cepheus, about 3860 LJ away and reaches its annual culmination at astronomical midnight end of July.
The Fireworks Galaxy and the Open Cluster NGC6939. The result of 4 awesome evenings of integration time.