Here is my final version of NGC 6946. A few tweaks from the version posted in this thread http://www.startools.org/forum/viewtopic.php?f=4&t=557 about standard deviation to reduce noise.
http://astrob.in/109994/0/
ngc 6946
Re: ngc 6946
lovely shot mate
Re: ngc 6946
Thanks Andy
Che
Che