Astrophotography by Mario Cogo

NGC 6888 - The Crescent Nebula 


About three degrees southwest of Gamma Cygni (Sadr), NGC 6888 is the compact semicircular nebula in this picture. Also known as the Crescent Nebula in Cygnus, was formed by the collision of the stellar wind of the (Wolf - Rayet  HD 192163), the 7th magnitude hot star in the middle of the bubble. The nebula region sorrounding the Crescent Nebula is the southern extension of  the IC 1318.


Date : 23/05/2001 from Roques de los Muchachos 2400mt. "La Palma" (Canary Island - Spain)
14/08/2002 from Cima Larici Asiago 1600mt.  (Vicenza - Italy)
Optics : Astro-Physics Traveler 105mm f/6 EDFS  with AP Field Flattener - Nikon F3 Camera
Mount : Astro-Physics GE-600E GTO autoguided by SBIG ST4
Exposure : Composite of two 30-minute on Kodak PJ400 Film and one 60-minute on Kodak E200 Film
Processing : Film scanned at 2700 dpi with Nikon CoolScan LS30 scanner, enhanced with Adobe Photoshop 6.0
Note : Dry climate and windy.


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All the images in this site are Copyright  1996 - 2002  by  Mario Cogo

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