description Barnard 93 Overview
Barnard 93 is a dark nebula in the constellation Sagittarius, projected against the dense stellar field of the Small Sagittarius Star Cloud within Messier 24. It appears as a dark patch because foreground interstellar dust absorbs and scatters visible light from the more distant stars behind it. Cataloged by astronomer Edward Emerson Barnard, it lies near the larger Barnard 92 and is commonly observed or photographed as part of the contrasting bright and dark structures in this Milky Way field.
help Barnard 93 FAQ
Why does Barnard 93 look black?
Barnard 93 is a dark nebula, so dense foreground dust blocks and scatters visible light from stars behind it. It is not an empty hole in space; the darkness is the silhouette of interstellar material.
Where can Barnard 93 be found?
It lies in Sagittarius, projected against the dense Small Sagittarius Star Cloud known as Messier 24. Barnard 92 is a nearby companion dark nebula in the same star-rich field.
How far is Barnard 93 from Barnard 92 in the sky?
The two dark nebulae are separated by roughly one-third of a degree, making them a useful binocular pairing. They sit against M24, which provides the bright background needed to see their dust silhouettes.
Can you see Barnard 93 with binoculars?
Under a dark sky, 7x50 binoculars can show the dark patches of Barnard 92 and Barnard 93 against M24. The challenge is not that B93 glows, but that you must notice where its dust removes the background stars.
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