ASTRO: NGC 6910

NGC 6910 is an open cluster in Cygnus that is embedded in the nebula around
gamma Cygni.
I imaged the area through an Astronomik 13nm Halpha filter. I also included
a colour version where I combined an old DSLR shot of the cluster (which
didn't show any nebulosity) with the Halpha image. The result is not very
convincing but I'll post the link to it anyway :-)

Taken from the middle of Berlin with an 8" SCT at f/6.5, G11 mount, SXV-H9
camera, 27x5 minutes through an Astronomik 13nm Halpha filter.

The pictures can also be found at
http://ccd-astronomy.de/temp/6910-27x5gut.jpg
http://ccd-astronomy.de/temp/6910-27x5colourgut.jpg

Stefan