Central Cygnus Region

Including NGC6888

Ultra Rich Milky Way Region

Uploaded 10/7/03

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This is about as deep as I can go with the Supra, extremely dark and transparent skies, and stacked Schmidt Camera images. This is an area in between Gamma and Eta Cygni, a very rich field of countless Milkyway stars, emission nebula tatters from ancient super nova remnants, isolated patches of nebulosity, and of course, the famous Wolf Rayet Bubble at the bottom, the Crescent Nebula (or Dividing Cell Nebula depending on which reference). The bright nebulosity in the upper left corner is Sharpless 2-101, and just to the upper right of center is Sharpless 2-104. The extensive nebulous tatters in the field have Lynds designations for some of the wisps. Dark nebulosity includes Barnard 145 which is the long patch near the left lower edge, and the Ced 174 complex just to its upper right.

Files sizes are a bit large, but JPEG compression does not work well on an image of this amount of small detail!

Processing Notes: Three separate 8 minute exposures at sky fog limit were scanned with a Nikon Coolpix LS2000 at 2700 dpi and 12 bit. Converted to negatives and registered and stacked with "Filter" in PW pro, which is the same algorithm as "Multiply" in Photoshop. Inverted and adjusted for brightness and contrast with Levels in Photoshop. See my new CCD image of this object.

Instrument:  8" f/1.5 Celestron Schmidt Camera
Platform:  Homemade GEM
Film:  Kodak Supra 400
CCD Autoguider: ST4
Exposure:  3x8mins
Filters:  NONE
Location:  Happy Jack, Arizona
Elevation:  6800 ft.
Sky:  Seeing 8/10, Transparency 9/10
Outside Temperature:  10 C
Processing: Photoshop, PW Pro.


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