ASTRO: NGC 4013

I imaged NGC 4013 in May 2009 and didn't take any notes about the conditions
of that night. Looking at the raw data (especially colour) it must have been
quite bad.

Taken from the middle of Berlin with a 10" Meade ACF at f/6.7 (image scale
ist 0,79 arcseconds/pixel) on a G11 mount, SXV-H9 camera, 22x5 minutes L,
5x5 minutes each for RGB.

The image can also be found at
http://ccd-astronomy.de/temp3/4013-22x5colourgut.jpg

Stefan