I was on my back deck having a smoke and saw suddenly several very bright emerald green lights flash sequentially once, left to right very quickly, probably one second, in an arc, appeared 30 to be 40 feet across,150 feet off the ground and 200 feet away, between the trees over a field behind our house. I thought I was seeing things and trying to process what I thought I just saw, and the same lights appeared again about 5 seconds later, and did the same thing but this time they were about 50 feet off the ground, partially obscured by trees. No sound.I pulled out my cell phone and turned on the camcorder but I never saw them again. I stood there for another 15 minutes or so staring at that area but saw nothing. That’s it. It shook me up. I always thought I wanted to see something but actually seeing it just freaked the hell out of me and I kind of wish I hadn’t.