Cave Nebula Bi-color (Oct. 2019)

I was able to add 9x1800" in O3 to the 8x1800" I have in H-alpha.  The two were combined to create a synthetic green channel, then O3 was assigned to B and H-alpha to R.  The subframes were taken with the SXVF-H9 through my Synta-ONTC Newtonian telescope.