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NGC 7000, The North America Nebula (Cyg)
Technical data: Pentax SDUF 400mm f/4 STL6303 with 6nm AstroDon H-alpha filter two frame mosaic with 4x900 sec for each part Author: Bernd Flach-Wilken
Technical data: Liechtenknecker Flatfield Camera 3,2/940mm STL6303 with 12nm H-alpha filter 6x900 sec. Author: Bernd Flach-Wilken
Technical data: North America and Pelican Nebula as a Tricolor-Composit, 12"f3,3 Deltagraph, Tech Pan 6415hyp., Red 25 min., Green 42 min and Blue 50 min. No color correction, only levels and curves were used to push the contrast Author: Volker Wendel
Technical data: Liechtenknecker Flatfield Camera 3,2/940mm ST10XME with 12nm H-alpha filter 4x900 sec. Author: Bernd Flach-Wilken Technical data: 15"f/8 Newtonian SBIG ST10XME, CFW8 and AO7 RRGB (R=6x1200s; G=3x600s; B=3x600s; all channels unbinned) Comments: FWHM 2,0", left image above is the red channel itself Author: Volker Wendel
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