Barnard 58 (also known as B58 and Sandqvist 23), is a dark nebula in the constellation of Scorpius, and can be found about 40 degrees south of the celestial equator in the tail loop of the scorpion.
B58 is an object cataloged in the Barnard Catalogue, an astronomical catalogue of dark nebulae. In 1919, the American astronomer Edward Emerson Barnard compiled a list of dark nebulae known as the Barnard Catalogue of Dark Markings in the Sky, or the Barnard Catalogue for short. The nebulae listed by Barnard have become known as Barnard objects. A 1919 version of the catalogue listed 182 nebulae; by the time of the posthumously published 1927 version, it listed 369.

Telescope: Planewave CDK17 (FR) f4.5
Mount: Astro Physics 1600GTO
Camera: QHY16200A/ Integral FW
Guider: Agena Starguide II / ZWO ASI178MM
Filters: Astronomik 36mm LRGB

L: 51×10 mins = 510 mins, R: 23×10 mins = 230 mins, G: 24×10 mins = 240 mins, B: 24×10 mins = 240 mins

Total Imaging Time: 20h 20m

Data Imaged remotely on 10 nights during July & August 2024.
Imaged from Observatorio El Sauce, Chile, in partnership with Fred Espenak.
Data acquisition & Processing by David Churchill.

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