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B92 and B93, Dark Nebulae
Barnard 92 and Barnard 93
Exposure Data
  • Image Field of View: 52.65' x 35.13'
  • Camera Field of View: 97.8' x 65.4'
  • Scope: 130 mm f/8 triplet apochromatic refractor
  • Focal Length: 784 mm with 0.75x focal reducer
  • Focal Ratio: f/6
  • Camera: Modified Canon Digital Rebel XS (1000D)
  • ISO: 1600
  • Exposure: 3 x 450 seconds (22.5 Minutes total)
  • Filter: Astronomik CLS
  • SQM: 21.81

Barnard 92 and Barnard 93 are two dark nebulae located on the northern edge of M24, the Small Sagittarius Star Cloud, in the constellation of Sagittarius. B93 is at left, and B92 at right in this image.

B92 is 15 x 9 arcminutes in size and is very dense and opaque. A lone 12th-magnitude star seems to be visible inside of M92, but it is really in the foreground. B92 is located at a distance of 10,000 light-years. B92 is sometimes called the Black Hole.

B93 is 15 x 2 arcminutes in size and much more mottled in appearance. It is also located 10,000 light-years away.

Both B92 and B93 were cataloged by E. E. Barnard in 1913.

North is to the top in the above image.

Barnard 92, Barnard 93
  • Catalogs:
    • B92: LDN 323
    • B93: LDN 327
  • Common Name:
    • B92: Black Hole
  • Object Type: Dark Nebulae
  • Size:
    • B92: 15' x 9'
    • B93: 15' x 5'
  • Constellation: Sagittarius
  • Image Field Centered At:
    • RA: 18h 15m 54s
    • Dec: -18° 12' 25"




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