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Gerhard Bachmayer | all galleries >> AstroPhotos >> Astrophotos 2003 - 2007 > North America Nebula ( NGC7000) + Pelican Nebula ( IC5070/IC5067) in Cygnus
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North America Nebula ( NGC7000) + Pelican Nebula (  IC5070/IC5067) in Cygnus
12-OCT-2005

North America Nebula ( NGC7000) + Pelican Nebula ( IC5070/IC5067) in Cygnus

The Cygnus constellation contains huge areas of glowing gas, mainly hydrogen and oxygen. The above examples are the most famous ones, because of their conspicuous shapes.
This picture has been created from images taken through two different narrowband filters, which have been asigned to the three colors red, green and blue.
Red = hydrogen alpha emmision line ( 656.3nm)
Green = double ionized oxygen emission lines ( 495.9nm and 500.7nm)
Blue = double ionized oxygen emission lines ( 495.9nm and 500.7nm)


Canon EOS 20D
Modified Canon 20D mounted on a TMB 80mm/F6 + Televue 0.8x reducer/flattener. Halpha-filter: 12x600sec/ISO800. OIII-filter: 18x600sec. Calibration and stacking, averaging, color balancing, sharpening in Images Plus and Photoshop CS2. full exif

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