Ngc 6866 is an open cluster in the constellation Cygnus. Not far, in eastern direction, there are well known objects like the "Propeller nebula" or the "Butterfly nebula".
For the shorts nights in summer, i decided to take a long exposed picture of an open cluster and have a look what will be visible in the background.
Location: Gahberg observatory, Upper Austria
Telescopes: Lacerta Newtonian 10" f/4 for Luminance, Newtonian 5" f/5 for RGB - captured simultaneosly
Mount: ASA DDM 60 pro
Camera: Sbig ST2000XM for Lumiance, SXV-H9 for RGB
Filters: Baader LRGB
Exposure: Luminance 75x5 minutes, RGB 17x5 minutes each
Processing: CCD Stack, PS CS2
Date: 2014-06-18+22+25 + 2014-07-03+07