After a long night of battling clouds, trying not very successfully to get RGB data of another object, I dashed this off just as dawn was lightening the sky (and the clouds were clearing - wouldn't you know). Only time for three short subs of L and one each of RGB, the last ones taken in a bright sky, so it's amazing anything came of it.
It's a lovely field so I'll try to do it properly later. The magenta patch at top is from the outskirts of eta carinae.
Bigger version
here
Takahashi TSA-120 with reducer
FLI Microline 8300
LRGB: 15, 5, 5, 5