Horeshead and Flame nebula

This is two, fifteen minute subs. Notice the lovely airplane trail, right through the horse. Naturally, on the second and final shot of the evening. Hopefully, with a few more subs stacked on to these two, the light streak will average out. Equipment is the same as for the M42 I posted. Again, comments welcome.

Joe Moskowitz

Attached Image:

Hi Joe,
If the software that you use to stack has a sigma noise reduction, it will remove the streak.
More exposures will give you a better signal to noise and improve the resolution.
If you can not do long exposures, then more is the way to go. Plus if there is a bad exposure then you do not lose that much time.

Nice going Joe! 8) great widefield...

Would you care to share what equipment & settings were used for this shot?

It seems as if you have some vignetting, as your image shows a large "round & bright" area in the middle of your shot, with darker edges...