I mentioned that I let the M51 galaxy shot let run unattended last night and
then I got up at 3am to image a summer nebula. Well that was M16 and I did
get 2 hours of Halpha
here's that image.
http://www.narrowbandimaging.com/m16...4_ha2_page.htm
Shot with the Stinger 18" classical cass with the FLI Dream Machine camera
and a Custom Scientific 4.5nm Halpha filter