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Gerhard Bachmayer | all galleries >> AstroPhotos >> Astrophotos 2003 - 2007 > The "Elephant's Trunk Nebula" in Cepheus
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The Elephants Trunk Nebula  in Cepheus
31-OCT-2005

The "Elephant's Trunk Nebula" in Cepheus

The Elephant's Trunk Nebula is part of IC1396, which is a huge emission nebula in Cepheus. It is a cometary globule, which consists of gas and dust, compressed by the strong radiation of a nearby star. New stars are probably born within.
This version of the nebula has been created from images taken through three different narrowband filters, which have been assigned to the three colors magenta, yellow and cyan.
Cyan= ionized sulfur emission lines ( 671.9nm and 673.0nm)
Magenta= hydrogen alpha emission line ( 656.3nm)
Yellow = double ionized oxygen emission lines ( 495.9nm and 500.7nm)

Canon EOS 20D
Modified Canon 20D mounted on a Vixen R200SSDG + Televue Paracorr. Halpha-filter: 15x600sec/ISO800. OIII-filter: 27x600sec. SII-filter: 27x600sec. Calibration and stacking, averaging, color balancing, sharpening in Images Plus and Photoshop CS2. full exif

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Frank Loehner03-Nov-2005 22:11
Sehr beeindruckend! Mehr davon!