The Wild Duck Cluster is an open cluster of stars in the constellation Scutum.

M11 (the Wild Duck Cluster) and M26 in Scutum annotated
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The Wild Duck Cluster is an open cluster of stars in the constellation Scutum. It was discovered by Gottfried Kirch in 1681. Charles Messier included it in his catalogue of diffuse objects in 1764. Its popular name derives from the brighter stars forming a triangle which could resemble a flying flock of ducks. The cluster is located just to the east of the Scutum Star Cloud midpoint.

[Source: Wikipedia, https://en.wikipedia.org/wiki/Wild_Duck_Cluster]

M011 (the Wild Duck Cluster) and M026 in Scutum.
Exposure 44@30 sec
ISO 5000
Camera Nikon D600 [6016 x 4016]
Optics Nikkor 80-400 mm lens at 112 mm f/5
Location Site 15, Kejimkujik National Park and National Historic Site, Nova Scotia.
Date 2018-09-09
Processing Processed in PixInsight and Lightroom.