Exposure Data:42min red, 60 min blue, 36 min green, 150 min hydrogen
alpha luminance layer. 6min subs for rgb, 15 min subs for HA.
Red channel is 50-50 blend of HA and red data. Luninance layer consist of
hydrogen alpha layer at 30% opacity. You can view the luminance/HA
layer at http://www.pbase.com/image/84821150