This is a HaLRGB image of the cluster NGC 6823 and the emission nebula NGC 6820. The conditions were pretty good for me all data captured in one evening. Image is at (click image or link for larger size) :
http://www.jthommes.com/Astro/NGC6823.htm
Scope: Explore Scientific MN152 (David Levy) Mak-Newt at f/4.8
Camera: ST8300M (Astronomik HaLRGB 1-1/4 inch filters)
Mount: G11/Gemini
Guiding: Megrez II 80 mm at FL 555 mm, DSI Pro, PhD Guiding
http://www.jthommes.com/Astro/NGC6823.htm
Scope: Explore Scientific MN152 (David Levy) Mak-Newt at f/4.8
Camera: ST8300M (Astronomik HaLRGB 1-1/4 inch filters)
Mount: G11/Gemini
Guiding: Megrez II 80 mm at FL 555 mm, DSI Pro, PhD Guiding
Jim Thommes
Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR
http://jthommes.com/Astro/