Ben, I do like the term UFO, there is no baggage which goes with that, not if you take it literally. I have also seen some weird stuff go on due to atmospheric lensing, once saw what looked like a city full of sky scrapes on the horizon far above the arctic circle, it was just a little village 70 miles away and beyond line of sight, but the atmosphere was ducting it in to us and magnifying the height of the small houses to look like a big city.