This gallery is to house the images used to investigate what may be cones in M42.
23-Feb-2011 Update:
Last evening, imaged the heart of M42 in Ha. It is much more apparent now after reducing the star halo what appeared to be the light side of a cone was a separate feature and may be a bowshock.
Looking at the 2nd row of images, compare 20110207_M42-05sec_CombExcAvg-DDP-ARL7x7x10-TPadj to 20110222_M42-Ha-60s_CombAvg-crvarl. The third frame is a side by side comparison.