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Telescope: Astro-Physics 160 EDF The Wild Duck Cluster (also known as Messier 11, or NGC 6705) is an open cluster of stars in the constellation Scutum (the Shield). 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 (or, from other angles, one swimming duck). The Wild Duck Cluster is one of the richest and most compact of the known open clusters. It is one of the most massive open clusters known, and it has been extensively studied. Its age has been estimated to about 316 million years. The brightest cluster member is visual magnitude 8, and it has 870 members of at least magnitude 16.5. It has an integrated absolute magnitude of –6.5, and a visual extinction of 1.3. (Wiki)
Mount: Astro-Physics AP1600 GTO Constellation: Scutum
Camera: SBIG STX 16803 with Astrodon Ver. 2 Filters Remotely Imaged With CCD Commander
Guiding:SBIG ST402 Guider Type: Open Cluster
Exposure Data: RGB 3 hours Position: R.A. 18h 51m 05.0 Dec -06° 16' 12"
Processed using Maxim data aquisition, PixInsight and PhotoShop image processing Date: May 2019
Data Acquisiton, Reduction and Processing by Jim Janusz Imaging Location: Cave Creek Canyon Observatory
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