The “Ink Spot”
![](https://macastro.org.au/wp-content/uploads/2022/07/2022-07-27-e-NGC-6520-OC-in-Sagittarius-Stack_21frames_1835s-1024x660.jpg)
The dark nebula Barnard 86, known as the “Ink Spot” and open star cluster NGC 6520, in the constellation of Sagittarius. Image by Roger Powell (2022).
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Roger PowellThe dark nebula Barnard 86, known as the “Ink Spot” and open star cluster NGC 6520, in the constellation of Sagittarius. Image by Roger Powell (2022).