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The scan down to the next globular took me right through an open cluster NGC 6520 and Barnard 86 (a dark nebula also known as the ink spot). There is a very striking contrast between Barnard 86 and the background star field. The Night Sky Observers Guide book has a picture but the view that night was far better than the photograph. Barnard 86 looked like a black version of M17 on a white background. Time to stop drooling and move on.
There is a little-known globular cluster very close to NGC 6520 and B-86, and it is fairly easy to see once you know exactly where it is. Djorg 2 (AKA E456-SC38) can be found by drawing a line from the center of NGC 6520 through the center of B-86 and extending it about twice that distance. The glob is found right in the center of a trapezium of stars that look just like the Hercules keystone. See the picture (below), which also shows the location of Djorg 3 (AKA NGC 6540), another glob that was formerly classified as an open cluster.
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