Nebuleuse Barnard 86 & open cluster NGC 6520 - Dark nebula Barnard 86 and open...

Nebuleuse Barnard 86 & open cluster NGC 6520 - Dark nebula Barnard 86 and open cluster NGC 6520 - NGC 6520, in the center of the image, is a cluster of young stars, aged a few million years. To its right is the dark nebula, Barnard 86, a cloud of molecular gas and dust, very cold, in which stars form. In the background, the billions of years old stars of Sagittarius. NGC 6520 is a young star cluster formed only millions of years ago. Besides, the dark nebula Barnard 86, a molecular cloud, very cold, from which the stars of NGC 6520 surely formed. All around them, oldest stars, which are billions of years old, form the star clouds of Sagittarius in the southern Milky Way and are in orbit around the inner part of the Galaxy. They are cool and yellow