Annnnnd when I saw that, I thought we were on the right track! At this point, with the naked eye, you could see the green just barely. It sort of looked like a long cloud of distant light-pollution. I then set up the tripod on the other side of the road for a better look. That's how the photos above were made. Most of the photos were taken with a 30sec exposure at ISO800 with my Fuji X-T1 and the Fujinon XF 27mm f/2.8 lens.