GSO 305 mm - Canon T3 - ISO 800 - 5 x 3 min + 3 x 4 min - Skyglow Filter - OAG - Coma corrector
New edition: I published here an wrong address. The correct link to Astrobin is
http://www.astrobin.com/182042/
My apologize for the error !
note 1: I was impressed when I seached by this object at internet

Despite I found 3 others source/photos it seems there be only one source and photo !
note 2: the bad performance of my coma corrector is present yet !