My latest image in a series of E. E. Barnard's dark nebulae. With an opacity of 6 (darkest), the U-shaped B 143, and B 142 stand out. The smaller B 335 (centre right) takes the shape of little dot while B 340, with an opacity of 5, is more of a challenge to locate.The pale orange star is g Aquilae, or Tarazed. North is to the left.

B 142 and B 143 - July 11, 2007
Location: Cypress Hills Provincial Park, Saskatchewan. N 49d 40.845' W 109d 33.651' 1287m.
Optics: Canon 200mm lens at f/2.8
Camera: Canon 20Da on Kenko SkyMemo
Exposures: 53 light frames of 60 sec @ ISO 400.
Process: Calibrated with 20 dark frames and 20 flat frames in ImagesPlus.