At first I saw a blinking light that changed color hovering in place. When it didn't move for several minutes, I videotaped it with my

I was out with my dog out back of the house when the object caught my notice. I live in a heavily wooded area off a county road, and it was pretty dark that night, even though there was a half moon. I took the dog in and went out on the porch and videotaped the object. For most of the video, there's only one object, but towards the end, another one becomes visible nearby--it may or may not have been generated by the principle object. It blinked constantly, and changed color--white/red/white/red, but not always consistently, or so it seemed. At first, I thought it might be an aircraft, but it made no noise, at least none I could hear from my vantage point. Eventually it moved off below the tree line and out of my line of sight, but it took a good long while for that to happen. When I got inside, I expanded the image and was surprised when it looked very much--I know this will sound funny, but I'm serious--a circular nipple with four lines set at regular intervals radiating from the edges, but stopping short of the center circle. The image is grainy, but distinct enough to show at least that much detail. Since that night, I saw it briefly a few nights ago, but it was low on the horizon and disappeared below the treeline before I could take another video. I sent the video to a friend of mine who's an experience pilot, and he couldn't identify it. At times it appears that the object changes direction very quickly and abruptly.