I got exactly 90 mins between moonset and astronomical twilight last weekend and I shot the horsehead and flame nebula. Somewhat low in the horizon. It is my first attempt and I am quite happy with how it turned out. Now I know I want to get a full 8 hours on this object the next time we have a clear moonless night.
Camera : Canon T2i, Takahashi FSQ 106ED on an Astro-physics 600E GTO mount.
Here it is:
The original image can be seen here: