Herschel 106, Barnard 86 and NGC 6520 (North Up, East Left)
Herschel 106, also known as NGC 6520, is an open cluster containing ~ 60 stars in the constellation of Sagittarius. It lies at a distance of ~5,400 light-years and is ~150 million years old. To the west of the cluster is the dark nebula Barnard 86, a cold, dark, dense cloud made up of small dust grains that block starlight and make the region appear opaque. It is thought to have formed from the remnants of a molecular cloud that collapsed to form the nearby star cluster Herschel 106. These objects are set against millions of glowing stars from the brightest part of the Milky Way, a region so dense with stars that barely any dark sky is seen. This image comprises 12 x Luminance (30 seconds each) and 6 x Red, Green and Blue (30, 32 and 28 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 30 degrees on 25 April 2017. The fields of view of the images at the top and bottom are 34’ x 23’ and 18’ x 12’ respectively.
Hills Observatory: 1 January 2013 to 26 May 2020