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In 1905 the pioneering astrophotographer Edward Barnard photographed this region and described these objects as "the small [triangular] black spot B 86, with the small cluster N.G.C. 6520 just east of it." In his famous "A Photographic Atlas of Selected Regions of the Milky Way" Barnard recorded this region in black & white from Mount Wilson using a 6.25" f/5 refractor on a grainy 8"x10" glass plate. His exposure was 4 hours, manually guided of course. I wonder what he would have thought of this image.

  • Object: NGC 6520 and Barnard 86 in the Sagittarius Star Cloud
  • Exposure: 60 minutes @ f/6.7
  • Telescope: Astro-Physics 130 EDF
  • Mount: Astro-Physics 600E QMD
  • Guiding: SBIG ST-4 @ 700mm
  • Camera: Pentax 67
  • Film: Kodak PPF 400
  • Location: Vicuña, Chile
  • Date: 17-Apr-02 02:11 CST
  • Conditions: transparency 8/10, seeing 7/10, LVM 7, temp 55° F, RH 73%
  • Processing: UMAX PowerLook 3000, Adobe Photoshop 6.0.1

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